connecting high presure hose to pvc

[dalehollow]

Just bought a combo unit that is regulator with a built in check valve, this is the same unit which I will connect my shore water to my houseboat. It shows a piece of high presure hose off the back of the unit then the hose attaches to my main pvc line, So is a tappered pvc 1/2 inch adapter for the high presure hose easy to find at a locale hardware or do I need to go to a plumbing supply. Your recommendations as to the type pvc I'll need to purchase which will run about 25 feet b4 I reach my existing pvc which up to now is supplied by a 12 volt on demand water pump from my holding tanks.

 

[robedney]

Not sure I fully understand your post. Standard schedule 40 PVC is fine for normal delivered water pressure (shore pressure). Pressure drop regulators are a good idea for pleasure boats that may have systems designed to handle the lower pressure of the installed freshwater pump (from the freshwater tank). If your houseboat is plumbed with PCV (schedule 40) throughout, you should be fine. PVC, however, is not good for hot water systems. You need CPVC or some variant for that.

Robert

 

[stmbtwle]

PVC pipe is designed to handle "shore" water pressure so in theory you shouldn't need any fancy connections.

I would install a pressure-reducing fitting/pressure regulator (available at RV or marine stores) at the boat's water inlet, this reduces the on-board water pressure to about 40 PSI. This will reduce NOT eliminate the risk of failure.

I do NOT connect my boat to shore pressure. I fill my water tanks and then I use the boat's system to
provide pressure to everything on board. In the event of any kind of failure the worst that can happen is I empty my water tank into the bilge. With shore pressure, the boat will fill up and sink.

If you insist on connecting to shore pressure, invest in a bilge alarm...

 

[robedney]

Good advice from Willie. You can also hedge your bets with shore water by picking up a couple of those water timers that are driven by the water flow itself (cheap, any hardware store). I say a couple because they are cheap and your want redundancy here. Put one timer at the dock connection and the other at the boat, and set them both for less water than it will take to fill your bilges. Just make sure to check them before hopping into the shower!

Robert