04:10PM | 09/13/05
Member Since: 09/12/05
1 lifetime posts
I can't remove the sump off of my whole-house water filter to replace the filter. I assume I must have overtightened it last time I replaced the filter. I tried tapping the plastic wrench lightly with a hammer to loosten it and just succeeded in breaking the wrench. Is there any way to get the sump off or do I need to remove the whole filter and replace it?

Gary Slusser

07:50AM | 09/17/05
Member Since: 02/17/04
112 lifetime posts
Possibly you aren't shutting off the water and relieving the pressure before you attempt to remove the sump? Otherwise get a strap wrench, hold the plumbing to prevent damage and use a cheater wrench or piece of pipe on the strap wrench handle to increase the leverage and loosen the sump.

When installing it, make sure the oring is clean and do not use petroleum type lubricants, water only or food grade silicone ONLY. DO NOT lube the threads of the head etc., water only if not dry and then do not over tighten. Oring seals are not pipe thread type seals and they are only snug, not tightened until they can't turn anymore.

Possibly you have the type filter that has the oring on the outside of the sump, they have this problem of not being able to get them off. A better design is with the oring in a groove in the sump that mates with the flat surface of the bottom of the head. So if you have the first type, maybe throwing it out and getting a good filter is in order.


Quality Water Associates


01:15PM | 04/10/15
I recently had my well pump and well pressure gauge replaced. While he was here, the well service man also replaced the cartridge in my whole house filter (I typically replace it every 3 to 4 weeks as my water pressure starts to go down). It's time to replace the cartridge again and I can't budge the housing. I'm a widow and had the whole-house filter installed about 2 years ago, so I definitely know about the pressure release valve and how to replace the cartridge. My O-ring is in a groove on the inside part of the housing. Do you have any suggestions as to how I can loosen it? Thanks!
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