Pump is failing to prime

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Brought this up in a recent post and will continue the problem solving under a more accurate title. Last fall, I blew out the water lines with a steady 20psi, then added RV antifreeze to the drain traps. Been doing it this way for years. This year, the water pump turned on as usual but is getting air in somewhere and will not deliver a clear stream. I’ve checked the screen on the pump and it’s clear. I can’t detect any air from the stub line , no matter what position the first valve is in. 

What shall I try next?

Edited by poohbill - Yesterday at 3:32pm

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poohbill Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 22 Aug 2019 Location: Idaho Online Status: Offline Posts: 95	Post Options Post Reply Quote poohbill Report Post Quote Reply Topic: Pump is failing to prime Posted: Yesterday at 3:14pm
	Brought this up in a recent post and will continue the problem solving under a more accurate title. Last fall, I blew out the water lines with a steady 20psi, then added RV antifreeze to the drain traps. Been doing it this way for years. This year, the water pump turned on as usual but is getting air in somewhere and will not deliver a clear stream. I’ve checked the screen on the pump and it’s clear. I can’t detect any air from the stub line , no matter what position the first valve is in. What shall I try next? Edited by poohbill - Yesterday at 3:32pm
	2016 179 Gastropod 2017 Ridgeline

jato Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 23 Feb 2012 Location: Kewadin, MI Online Status: Offline Posts: 3358	Post Options Post Reply Quote jato Report Post Quote Reply Posted: Yesterday at 3:51pm
	Have you physically removed the screen/filter, and checked the gasket for cracks and put back together? I have seen where the valve to the pigtail, or as you call it, the stub line doesn't fully close and it is possible for you to blow air into the line, indicating a leak. I have seen this work where the pump is running and you open and close the valve downstream from the pigtail - sometimes it will catch and start pumping after going this route a several times. Also have you checked all your lines when pump is running? Any mouse droppings or otherwise where something may have chewed a tiny hole into your line(s)?
	God's pod '11 model 177 '17 Ford F-150 4WD 3.5 Ecoboost Jim and Diane by beautiful Torch Lake "...and you will know the Truth and the Truth will set you free."

poohbill Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 22 Aug 2019 Location: Idaho Online Status: Offline Posts: 95	Post Options Post Reply Quote poohbill Report Post Quote Reply Posted: Yesterday at 6:41pm
	The screen gasket checked out fine, but you pointed me in the right direction - the filter housing itself was cracked. Simple fix at low cost - Thanks for this. Bill
	2016 179 Gastropod 2017 Ridgeline