Hi folks! I've taken possession of 25D #189 and am trying to make sense out of the owner's manual's treatise on the hot/cold pressure water system, and dope out the submarine-like array of valves. Has anyone a simplified approach. Like what to do to drain the system for the winter and how long the engine needs to be run for how much hot water. Do the tanks need to be filled for proper trim, which tank is for hot and which for cold? And what don't I know that I should know?
Don@cliggott.com
Pressure water system
Moderator: Jim Walsh
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Lee H. Hodsdon
Re: Pressure water system
Don,
Hope I can help, here we go.
As I said there are two supply tanks. These tanks are piped to a "T" with a shutoff valve for each tank located just prior to the T. We have only one valve open at a time. From this T there is a wire mesh strainer which can be removed for cleaning, then a supply line to the hand pump at the galley sink if so equiped. The line then leads to the electric pressure pump. Here there is another T, with the cold water supply line going to both the galley and head sink/shower, and the hot water line going through a check valve (?, if there isn't there should be. This will keep hot water from coming back into the cold wter line) to the hot water tank. This water is heated by the fresh water cooling loop from your engine. Hot water is then supplied to both the galley and head sink/shower. The galley sink drains through a seacock through the hull. The head sink/shower drains to the bilge where it is pumped out. Keep the bilge clean by flushing with seawater when possible. Fresh soapy water sloshing around in the bilge can be a real joy after a little time!
And what don't I know that I should know?
As a suggestion, clean the tanks thoroughly at the end of each season, then check them when you fill them for the next season.
Again, the hot water is HOT so be careful.
Sincerely,
Lee H. Hodsdon
P.S. It is a damn fine boat! Keep your sails properly trimmed, keep the boat as flat as possible and concentrate and there will be a lot of folks behind you, and wondering why.
lhodsdon@nh.ultranet.com
Hope I can help, here we go.
and how long the engine needs to be run for how much hot water. I've found that once the engine thermostat opens the water in the hot water tank heats up quite quickly. My tank capacity is 5 gallons, but you will find that you have much more than 5 galons of hot water. The replacement water supplied to the tank is heated up very quickly. In fact be very cautious when using the hot water because like McDonalds coffee it is HOT. Do the tanks need to be filled for proper trim, You will have to experiment with this. When crusisng we have both tanks filled, use the pilot berth tank first and then switch to the double berth tank. which tank is for hot and which for cold? On my boat there are two supply tanks, and one hot water heater. I suspect yours is the same. I'll try and describe the piping schematic for you (this is from memory so e certain to check your manual).Don wrote: Hi folks! I've taken possession of 25D #189 and am trying to make sense out of the owner's manual's treatise on the hot/cold pressure water system, and dope out the submarine-like array of valves. Has anyone a simplified approach. Like what to do to drain the system for the winter I run the electric pressure pump until the discharge from the faucet is a mixture of water and air, then I add some RV drinking water system antifreeze to the tank and pump it through the system until it dischages from the faucet. This stuff is colored so it is simple to tell when you are successsful. Repeat for the other tank and for all faucets. Then I remove the remaining liquid from the tanks with a clean sponge as best I can. Leave the faucets open. Next I label, then discnnect the inlet an outlet lines from the hot water tank. Mine is accesible through the port cockpit locker. Leave these lines disconnected. Then I remove and clean the water system strainer, port side in the engine compartment. In the spring flush the system with fresh water and refill the tanks.
As I said there are two supply tanks. These tanks are piped to a "T" with a shutoff valve for each tank located just prior to the T. We have only one valve open at a time. From this T there is a wire mesh strainer which can be removed for cleaning, then a supply line to the hand pump at the galley sink if so equiped. The line then leads to the electric pressure pump. Here there is another T, with the cold water supply line going to both the galley and head sink/shower, and the hot water line going through a check valve (?, if there isn't there should be. This will keep hot water from coming back into the cold wter line) to the hot water tank. This water is heated by the fresh water cooling loop from your engine. Hot water is then supplied to both the galley and head sink/shower. The galley sink drains through a seacock through the hull. The head sink/shower drains to the bilge where it is pumped out. Keep the bilge clean by flushing with seawater when possible. Fresh soapy water sloshing around in the bilge can be a real joy after a little time!
And what don't I know that I should know?
As a suggestion, clean the tanks thoroughly at the end of each season, then check them when you fill them for the next season.
Again, the hot water is HOT so be careful.
Sincerely,
Lee H. Hodsdon
P.S. It is a damn fine boat! Keep your sails properly trimmed, keep the boat as flat as possible and concentrate and there will be a lot of folks behind you, and wondering why.
lhodsdon@nh.ultranet.com
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Russ
Re: Pressure water system
Don't forget to drain your accummulator tank also. According to Boat/US insurance the single biggest claim they get is for a frozen accumulator tank.Don wrote: Hi folks! I've taken possession of 25D #189 and am trying to make sense out of the owner's manual's treatise on the hot/cold pressure water system, and dope out the submarine-like array of valves. Has anyone a simplified approach. Like what to do to drain the system for the winter and how long the engine needs to be run for how much hot water. Do the tanks need to be filled for proper trim, which tank is for hot and which for cold? And what don't I know that I should know?
Russ
camroll@together.net