Forum Discussion
Cheryl_B
Jul 03, 2016Explorer
OMG!! PTL, I fixed it!
I went under the bed (pulled the mattress and plywood off again) and took the "3 screws" off (was 8) to access the diaphragm to examine for debris. Found none but it felt a little slimy so I wiped it all down with a paper towel, carefully.
Put that back on and then checked the water flow from the fresh water tank. There was almost none! I blew into the hose and bubbles went into the tank, but still almost nothing came back when I left the valve open and placed it down on a towel.
You all said that if there was a leak anywhere in the system, it could cause problems. Well, the little outdoor stopcock thing had been leaking and I had bought a new one and some sealant to replace it. I decided today was the day, since my Class C was a wreck inside anyway.
I took off the old stopcock and grabbed the hose (there wasn't much of it and I was afraid it would get sucked back through the hole) with an adjustable wrench, then had to twist and turn the old stopcock to get it out of the hose. I discovered that it broke off in the hose partway, so I figured I'd have to cut the hose but the broken piece came out later on when I adjusted the wrench.
I scraped all the old caulk away from the wall of the RV and when it FINALLY finished draining, I applied the new sealant and screwed the two fasteners into place. Then I applied more sealant all around the outside rim.
Gave it 30 minutes or so before refilling the tank through the gravity drain thing (above the stopcock) and I shut it off before the tank was all the way full cause I didn't want any backflow or possible leakage into the RV.
OMG!!!! The pressure is just what I thought it would be with a new water pump. I can't believe it and I know that it was my effort along with God's Grace and prayer for help. I saved myself from ruining the brand new water pump by investigating and ruling things out.
I'm so happy. AND TIRED! Thank you for all of your suggestions and help. I never would have thought a leak from essentially the bottom of the fresh water tank would affect the water pump. Go figure!
I went under the bed (pulled the mattress and plywood off again) and took the "3 screws" off (was 8) to access the diaphragm to examine for debris. Found none but it felt a little slimy so I wiped it all down with a paper towel, carefully.
Put that back on and then checked the water flow from the fresh water tank. There was almost none! I blew into the hose and bubbles went into the tank, but still almost nothing came back when I left the valve open and placed it down on a towel.
You all said that if there was a leak anywhere in the system, it could cause problems. Well, the little outdoor stopcock thing had been leaking and I had bought a new one and some sealant to replace it. I decided today was the day, since my Class C was a wreck inside anyway.
I took off the old stopcock and grabbed the hose (there wasn't much of it and I was afraid it would get sucked back through the hole) with an adjustable wrench, then had to twist and turn the old stopcock to get it out of the hose. I discovered that it broke off in the hose partway, so I figured I'd have to cut the hose but the broken piece came out later on when I adjusted the wrench.
I scraped all the old caulk away from the wall of the RV and when it FINALLY finished draining, I applied the new sealant and screwed the two fasteners into place. Then I applied more sealant all around the outside rim.
Gave it 30 minutes or so before refilling the tank through the gravity drain thing (above the stopcock) and I shut it off before the tank was all the way full cause I didn't want any backflow or possible leakage into the RV.
OMG!!!! The pressure is just what I thought it would be with a new water pump. I can't believe it and I know that it was my effort along with God's Grace and prayer for help. I saved myself from ruining the brand new water pump by investigating and ruling things out.
I'm so happy. AND TIRED! Thank you for all of your suggestions and help. I never would have thought a leak from essentially the bottom of the fresh water tank would affect the water pump. Go figure!
About Motorhome Group
38,766 PostsLatest Activity: Jan 10, 2026