Forum Discussion
Travelin2
Oct 05, 2017Explorer
Farmboy666 wrote:loggenrock wrote:
Low point drains do NOT drain the fresh water tank - that's another valve. Low point drains allow water in the lines to drain - you should have both a hot and a cold drain, in addition to the water tank drain. 3 total. I have a 2015 Prism 24J - the valves are small T-handles that pull up to open. Lousy placement, they are behind a panel in the under-bed storage compartment. They will drain onto the ground. Mine happen to be just behind the passenger side rear dual wheels. ST
My low point drain DOES drain my fresh water tank and everything below it so be careful with your blanket statements.
I agree with loggenrock. The valves called "low point drain" refers to the valves that open the pressure lines and allow the water retained there-in to drain by gravity. If indeed those valves also drain your freshwater holding tank then when you close those low point drain valves the pressure in the lines when the system is pressurized would backfill your freshwater tank. Your freshwater tank has an overflow/vent line so when your low point valves are closed there must be water constantly flowing out your vent line. Right?
My rig has two low point drain valves and one freshwater drain valve.
About Motorhome Group
38,705 PostsLatest Activity: Jan 14, 2025