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Great Lakes Shipwreck Preservation Society
Dedicated to Saving our Shipwrecks "From Prevention to Preservation"
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Website Updated

GLSPS Annual Fundraiser!!

UMSAT Show Website

Date and Venue for 2020 UMSAT Show!!

April 3 - 4, 2020


Fred Stonehouse

Maritime Historian and Superb Story Teller

Friday Night at the Movies
7:00 to 10:00 PM

Saturday, 9:00 AM to 6:00 PM
Main Show

(Meet and Greet Party with Food and Beverages)
At The Holiday Inn Hospitality Room
(Next Door to Jimmy's)
7:00 PM to 12:00 AM

For more information on the 2019 UMSAT show, and the upcoming 2020 UMSAT Show, please visit

If you are interested in joining the UMSAT Show Planning Committee, please email us at

Or, contact Mary Lillimo at "Show Chairperson", or Phil Kerber, "President", at

Here are the Links to Important Exhibitors Documents

2020 UMSAT Show Exhibitors Contract

UMSAT Show 2020 Exhibitors Sponsors Registration Form

  UMSAT Booth Table Layout at Jimmy's Event Center

We are always looking for speakers that would like to present a great topic about their scuba diving or adventure travel experiences.

Please let us know if you, or anyone you know, would like to be a star and speak at a future UMSAT Show!

Lake Superior Magazine Logo 2x1
Check out the most beautiful magazine ever produced in Northern Minnesota!

GLSPS Project Sponsors

Air Down There Scuba offers free air fills and special pricing on rental equipment while participating in GLSPS projects. Required to show GLSPS Membership Card! 
Thank you, Scott and Tracy!

Aquaventure Dive and Photo Center offers free air fills and special pricing on rental equipment while participating in GLSPS projects. You will be required to show your GLSPS Membership Card.  They have also loaned us a GoPro HD video camera for a few projects. Thank you, Steve and Jolene!

Videos produced by Steve at Aquaventure Dive and Photo Center filmed in Lake Michigan on a Milwaukee charter trip. Click on their above logo for information to join them on a charter to visit these shipwrecks.
Prins Willem
The Dredge 906

Jay Hanson from North Shore Scenic Cruises has helped the GLSPS on many projects. Jay has many years of experience as a Captain, dive shop owner, dive instructor and commercial diver.

Jay has taken a different path for the past few years and his scuba charters are no longer available. However, in 2012, Jay purchased the Wenonah which was previously used to transport people from Grand Portage, MN to Isle Royale, MI. He now offers day cruises on the North Shore of Lake Superior and is docked at the Silver Bay, MN Marina.

For the last two years the Wenonah has been laid up in dry dock to replace the entire steel bottom of the boat in order to pass the Coast Guard Safety Inspection. 
The Wenonah will hopefully be ready for service in 2020.

If you are interested in booking a 2 hour - day charter cruise on the North Shore of Lake Superior, please click on the logo above for information on joining him and his staff on a north shore day cruise.

HomeRV Preservation 2018 Work Weekends

2018 R/V Preservation Work Weekends


The summer project season is fast approaching!  Would you like to help in preparing the R/V PRESERVATION for an exciting season of fun and interesting projects. We are working on some still-in-progress items and include a number of improvements for the new season. Please review the "To Do List" and "Dream List" see if there is anything that you could help with. 

To learn more about the RV Preservation Work Weekend and to view the "To-Do-List" please click on this link,    

R/V Preservation Work Weekends

We invite you to join with us and get to know the R/V PRESERVATION and more people in the GLSPS. We'd love to share a weekend of boat-work and camaraderie.  With the R/V PRESERVATION and Phil's camper, we can usually house up to six volunteers at a time!


This event is split into separate activities for each day of each weekend. Please register for each day you are able to attend so we can plan tasks and sleeping arrangements based on the skill-sets and headcount of those attending each day.

Please join us for the learning, rewarding and comradeship you can only receive from an event like this.

GLSPS Board of Directors
Ken Knutson - RV Preservation Chairman 

Closing Report:

Click Here to view the Photos of the Work Weekends

R/V Preservation To Do List - As of 04-20-18

Please Note: Tim Pranke is in charge of ALL painting projects on the R/V Preservation!  All painting instructions and procedures must be approved by Tim. Thank You!

Painting / Projects

  1. Pressure wash entire outside of boat - required each year.  (Launch Weekend)?  Not Needed this year.
  2. Grind/clean and repaint all pealed/rusted areas - annual process. Cleaned and painted white areas on both sides and roof.  Cleaned, primed and  painted dark blue gunnel under diamond plating and further forward on starboard side of boat. Done for 2018.
  3. Seal Divers Benches on back deck with CWF varnish.  Sealer and brushes were purchased.  Sealer not applied as of 6-3-2018
  4. Check the top of the Pres (white roof areas) - completed 2014, verify good coverage.  Certain areas of roof, front and top of boat.  Done for 2018
  5. Clean interior walls and repaint if needed - annual process.  Cleaned with mold removal cleaners.  Cleaning is performed throughout 2018.  
  6. Inspect rear wall and door. Clean, paint and reseal wall as necessary.  Some rust is showing in corners of rear wall.  Rust  grinding sealing and painting needs to be throughout the season.  Wall and other areas of door appear OK at this time.
  7. Install threshold in bottom of door and make any necessary adjustments.  Maybe this season but not completed as of May 28, 2018
  8. Clean bilge areas in all compartments. These high-moisture areas may need some paint work or primer applied if bare metal areas are noted.  Done - All 3 bilge compartments cleaned! 
  9. Pull up old saturated engine absorbent pads and replace with new absorbent pads.  Order more pads as needed!  Done. 
  10. Inspect and mid-ship deck drains and pipes.  Leakage was repaired 2017.  Blown out with compressed air 2018.  Done. 
  11. Clean and paint the rear deck. (Preferably before Diver Benches are bolted in).  After paint, re-install the rubber deck mats.
    • Tim repaired deck supports. We are contemplating some additional changes. We hope to weld them prior to painting.  Done.
    • Tim will be welding in new exhaust plumbing on Starboard side only - May affect some paint projects?  Done.

Mechanical / Electrical

  1. Re-Check the rear fittings on the new hydraulic steering - slight weep at a fitting still noted?   Fittings inspected 5-2018 seems to be leaking very minimal and not worth moving any further forward on this at this time. Done.
  2. Refill / top off steering reservoir as needed.  Topped of and Done.
  3. Check for oil leaks in the engine room and repair as needed.  Note the rest of the leaks (here) that can't be repair this year.  Minimal and normal oil leakage has been noted. No additional service needs to be performed at this time.
  4. New horn has been installed! Mountings/wiring may need to be modified and resealed on roof? 
  5. Mount dive ladder to dive platform. (Annual project). Done
  6. Check to ensure no leakage is occurring around wires to the radar mast? Done in 2017
  7. Chart "Battery Switches" and document to ensure a safe operator procedure to start engines in the event of a discharged battery.  In progress
  8. Check fresh water pump impeller on both engines?  (Change every other year). (Was change last in 2016Replaced 5-2018.  Done!

Annual Maintenance - Engine   -   (See Parts Receipts Under Documents Section)

  1. Change oil on both engines. Done.
  2. Change diesel fuel filters for both engines and fill with fuel.  Done.
  3. Change oil in both injector pumps.  New drain plugs have been installed, please use them to drain oil.  Done.
  4. Install grease zerks in place of grease thimbles.  Done. 
  5. Grease all four grease zerks on freshwater engine cooling pumpfour.  Done. 
  6. Rocker arms and push-rods were replaced  (Recheck valve clearance)?  (Due 2019)
  7. Replace both Fresh Water Pump Impellers. Done. (Re-ordered two more to keep on board vessel)  not received as of 6-5-2018
  8. Check both Love Joy couplings for tightness.  They are connecting fresh water pumps to injector pumps. OK, Done.
  9. Replaced Starboard and Port Engines Radiator Caps with 10 Lb Caps.  (The wrong 4 Lb Caps were installed in the spring and replaced again in July)!
  10. Replaced 160 degree T-stat with 180 degree T-stat in Starboard engine.  Flushed cooling system.  (And both heaters that are attached to engine cooling system).  Tested Head Gasket for possible leak in July 2018. Found it to be OK!
  11. Engine temp sensors tested July 2018.  Found they are both in accurate.  We will be ordering 2 new temp senders in an attempt to get them as accurate as possible.  Please Note: Port side engine has a 3/8 In NPT hole and Starboard Engine has a 1/4 In NPT hole in T-stat Housing for temp senders.  May consider drilling out and tapping new threads in Starboard Engine T-stat housing to make the NPT size the same for both engines.  (All purchase receipts are in the RV Preservation Documents section of the website).
  12. Check both alternator belts for wear and tightness if they are OK, Done.
  13. Engine Hours (as of the beginning of 2018 season) after completing above service work - Port =   _965_  Starboard = _942_
  14. The Port engine had _873_ hours at the beginning of 2017 and the Starboard engine had _853_ hours at the beginning of 2017. 
  15. Total Hours put on engine in 2017 - Port __95__  Starboard__92__  (Someone left the key on for 3 hours on Port Engine).

Annual Maintenance - Boat

  1. Remove tarp and PVC framing from boat.  (Haul back to Cities and store in PK's Barn.) Done.
  2. Cut out old Water exhaust piping  and replace new piping on both Starboard and Port sides. Done.
  3. Check all Anodes - On Hull, Rudders and Heat ex-changers on Transmissions (4).  Can be purchased from Marine Parts Resources. pt# CME0 Link to website,  - Reordered correct Zink Anodes 5-29-18 - We have recieved the correct Zincs for the transmission cooler pipes.  Still need to install them.  Port side is able to be replaced easily but the starboard side is seized in its hole.  the cover will need to be removed and extracted to be able to replace the zinc in the Starboard transmission.
  4. Grease both rudder posts. Done.
  5. Check both main batteries - add water if necessary (distilled water only). OK, Done.
  6. Install both brass props - brass keys are stored in orange case in head or attached to props. (Make sure we use large brass washer on Port side prop)  Done.  
  7. Check tightness of Cutlass Bearing screws (8).  Done.
  8. Check wiper blades and wiper motor operation. Replaced both wiper blades and check operation. Done.
  9. Replace drinking water filters and prepare system for season. Install new drain valves as appropriate!  Done.
  10. Prepare head system (chemical toilet) for season.  Done.
  11. Replace batteries in CO sensor, smoke detectors, bilge heat sensor and digital clocks. Done.  (Except we are missing smoke detector)!!  Need to purchase new smoke detector for 2018 season
  12. Inspect all fire extinguishers, flip and roll dry chemical extinguishers to prevent chemical compaction - date and sign tags. Done. 
  13. Inspect and install all safety equipment and check expiration dates for applicable items including: First Aid bag, AED, O2 pack & extra O2 bottle.  First Aid bag gone through, items missing order in put into bag and are ready to go. Done.  Please Note:  Large extra O2 bottle is due for hydro in 2017.  Phil will bring updated current hydro O2 bottle to install after it is returned from the hydro test and filled.
  14. Inspect all distress signal equipment, check expiration dates for applicable items.  OK, Done.  Please Note:  There are 8 expired hand held flares and 6 flare gun flares.  Both have current flare updates but old expired flares are still in Emergency flare bag!!
  15. Insert legal paper-work, license, registrations and insurance info in designated areas. Done.
  16. Install and test all electronics to verify proper function!  All original equipment installed and tested OK - Done.
  17. Verify operation of all switches and indicators on the boat console!  Done.
  18. Check intermittent operation Horn switch.  Verify wiring and operation?  No wiring issues, horn switch defective.   Switch needs replacement!  Switch will be replaced before cruise up the Silver Bay.
  19. The (12V DC) auxiliary plug in is not working?? (New plug in and new USB charging plugs will be installed!)  In progress
  20. Add air to Emergency Dingy and check for leaks.  Check Oars.  Both OK and Done.
  21. Clean debris out of all deck drains.  Done.
  22. Replace scupper flaps.
  23. Inspect engine compartment intake ducting.  Done in 2017 - Inspected again OK, Done.
  24. Final cleanup - clean and vacuum all carpet prior to leaving final weekend! 

Annual Maintenance - Compressor (this task is performed at Phil's Quality Automotive Inc  Phil Kerber's shop in Corcoran)

  1. Change oil on 5-Hp Honda engine - use AMSOIL 10W-30 synthetic small engine motor oil. Done.
  2. Change oil in Bauer compressor - use human grade synthetic oil. Done.
  3. Remove lines and filter canisters and O2 clean them, repack canisters with new chemicals in both primary and secondary filtering systems. Done.
  4. Check paper air filters at compressor and at air intake on radar mast. OK, Done.
  5. Please Note:  Make sure the O-Rings on Primary filter on both cap ends are good!   OK, Done.
  6. Check belts. OK, Done.
  7. Check all hoses for wear and any damage.  OK, Done.
  8. Check CO monitor to see if still showing pink (Pink = OK)  OK, Done.
  9. Check all bleed drain valves. Done.  Second pressure chamber release bleed valve is leaking slightly and may need replacement.
  10. Clean any debris and dust form external parts of the compressor. Done.
  11. Install wet muffler for scuba compressor - can be installed with the compressor!  Inlet repaired in 2018. Done.
  12. The Scuba Compressor has _164.5__ hours on it in the beginning of 2018 and 142.9  hours on it at the beginning of 2017.        Total hours on compressor for 2017 is 24 hours?

Dream List / Projects

  1. Install rear roof to transom tarp.  Check on who can do it and the pricing (2019).
    • Provide new quotes on Canvas top for rear deck.  See in house canvas company at Spirit Lake marina?  (2019)
  2. Design and build compressor containment for permanent outside mount.  Surrounding built and researching as to what we need to do to permanently mount it for the season. (2019)!
    • Researching?
  3. Redesign fresh air intake for heater to draw air from cabin area instead of the bilge.   
  4. Design and install deck anchor roller and latch mechanism.
  5. Install USB Power Charging Stations (2) donated by Jack Decker!!    In progress
  6. Install high temp and low oil pressure light and sound alarms on both engines?  Researching!
  7. Water flow indicator for compressor wet exhaust?  Researching!
  8. Check all sacrificial anodes & replace as necessary - swap any zinc anodes with aluminum (note: rudders and heat ex changers are currently protected by zinc anodes! )  Both transmissions need new zincs (2).
  9. Purchase an EPIRB?  If it is within the budget?
  10. Purchase and Install New depth sounder / sonar.  Looking for donations to purchase or have a unit donated.  Transducer and Display were ordered and received.  The transducer has been installed.  The display installation is in progress.  The NMEA 2000 network wiring will be installed and is in progress.  Software in Display unit will need to be updated after installation!  Done!
  11. Design and fabricate a step on starboard side gunwale entrance.  Phil ordered and received a step from Mac Tools.  A slight modification will need to be performed on the step for boat use by Ken Knutson.

Liability Waiver

The GLSPS requires participant to print, read and sign the Master Liability Release and Waiver Forms for all projects. Please click the link below to print your copy to give to the project or event leader (Thank You).

GLSPS Master Liability Waivers - Medical Forms


Please join us for this rewarding time of working with GLSPS Members on one (or more) of the work weekends. Let's get the R/V Preservationready for an exciting season of dive projects.

Hope you can JOIN IN THE FUN!

Ken Knutson
Boat Chairman
Senior Captain

Tim Pranke
Assistant Boat Chairmam