Foretravel Owners' Forum

Foretravel Motorhome Forums => Foretravel Tech Talk => Topic started by: dans96u295ft on March 07, 2020, 10:35:35 pm

Title: accumulator water tank pressure help
Post by: dans96u295ft on March 07, 2020, 10:35:35 pm
Ok. I'm ready to put water in the mh for the first time since buying last October. After I add water to the water tank, do I then check air pressure in accumulator or when connected to the city water or? Never owned a RV with an accumulator tank
Thanks
Title: Re: accumulator water tank pressure help
Post by: Chuck & Jeannie on March 07, 2020, 10:59:54 pm
You want to check the pressure in the accumulator before there is any pressure in the system.  So check the accumulator pressure before you hook up to city water to fill the water tank.  Turn one of the cold water faucets on to relieve any residual pressure in the system.  When water stops flowing, then you can check the accumulator pressure.  See link below for more info:

Fresh water precharge accumulator (https://www.foreforums.com/index.php?topic=39018.msg382095#msg382095)
Title: Re: accumulator water tank pressure help
Post by: dans96u295ft on March 08, 2020, 12:29:29 am
The system has been winterized with air last fall. I'll check the air pressure in the tank 1st, then adjust to 23 psi and add water. That is what I'm getting from this forum correct?
Title: Re: accumulator water tank pressure help
Post by: Twig on March 08, 2020, 04:40:29 am
The water has nothing to do with the accumulator tank pressure. There is a rubber bladder inside the tank that holds air pressure. You can pressurize that tank at any time. The bladder will always hold that pressure unless there is a leak
Title: Re: accumulator water tank pressure help
Post by: Chuck & Jeannie on March 08, 2020, 09:40:40 am
No matter WHAT is in the pipes - antifreeze, water or air, the important thing is to relieve all the pressure on the water system before you check the accumulator pressure.  That way you will get a accurate pressure reading.
Title: Re: accumulator water tank pressure help
Post by: wolfe10 on March 08, 2020, 09:53:32 am
All correct answers.

Accumulator pressure is checked with NO PRESSURE ON-- so, shore water off, water pump off and a faucet opened to depressurize the system.

Water tank can be empty or full, doesn't matter.  But pump off, faucet open.
Title: Re: accumulator water tank pressure help
Post by: dans96u295ft on March 08, 2020, 10:33:04 am
Ok. I finally got it!!!
Thanks
Title: Re: accumulator water tank pressure help
Post by: dans96u295ft on March 08, 2020, 04:21:31 pm
Ok, No water in valve. No air in tank. I pumped up to 28psi and will check tomorrow to see if it holds pressure