LLigetfa
DIYer, not in the trades
No it does not make sense to lower it that much. Have you checked that your air and water gauges both read the same? My guess is they do not.Does it make sense to lower the air supply back down to 16psi...
No it does not make sense to lower it that much. Have you checked that your air and water gauges both read the same? My guess is they do not.Does it make sense to lower the air supply back down to 16psi...
No it does not make sense to lower it that much. Have you checked that your air and water gauges both read the same? My guess is they do not.
He sees that pressure drop for about 10 seconds.If you are seeing a delay because the air charge in the tank is too high you should see the gauge drop to zero for those first 10 seconds?
Dang... I had presumed that was the case, but looking back I see that it was very different; I was wrong:I did not see where he said the gauge was dropping to zero for those 10 seconds. Then yes either the bottom check has failed as you say or the pump is not coming on for 10 seconds.
2) As a result of #1, when taking a bath, the pressure drops to about 36psi by the time the pressure starts to build and then proceeds to climb at an almost non-existent rate.
Dang... I had presumed that was the case, but looking back I see that it was very different; I was wrong:
Well then, forget almost everything I said on this thread. I paid too much attention to the title. Dropping to 36 is hardly even a symptom.
Not having the topside check valve would still be better.
It could be your bath draws higher gpm than most, or your water level in the well is low, or your pump has deterioratd some. This is for one type of pump, but others will be fairly similar.There is a 10 second delay between the time the pressure switch calls and the water gets to the tank. During those 10 seconds the pressure drops from 40 to 36 and pretty much stays at 36 during heavy demand like a bath.
Hey guys, here is a quick backstory about what's happening. Currently installed is an 18 year old 20 gallon expansion tank (I know too small) and a 3/4hp 7gpm submersible pump set 300ft down.
I had never checked the air pressure in the tank and to my surprise, it was at 16psi (came precharged at 28psi) with the tank empty. I checked with 2 separate guages to make sure.
I found out the old homeowner changed the old 30/50 switch to a 40/60 and never adjusted the pressure. So I bumped the pressure up to 38psi where it should be.
Since then, I've noticed 2 things:
1) There is a 10 second delay between the time the pressure switch clicks on at 40psi and pressure starts to build.
2) As a result of #1, when taking a bath, the pressure drops to about 36psi by the time the pressure starts to build and then proceeds to climb at an almost non-existent rate.
Do you guys think the tank is bad/too small, there is still too much air in the tank, or is this a sign of larger problems with the well pump?
For what it's worth, I was planning on swapping out the 20 gallon tank for a 32 gallon tank (8.6 gallon drawdown at 40/60) in the near future.
Lastly, with a 7gpm pump, I was under the assumption that I would need a 26 gallon tank in order to get the 7 gallon drawdown at 40/60 (according to Amtrol). This should work out to 1 minute of runtime according to them. However, I'm getting the 1 minute of runtime with the current 20 gallon tank so I'm confused.
I didn't have any of the aforementioned pressure issues when the pressure was at 16psi. I didn't notice then at least. Any insight would be greatly appreciated!
Hi. New on here but was going to post anyway to existent problem. We had same issue when upsizing our pressure tank.we ended up changing our our supply hose to pressure tank to clear braided line to be able to tell visually if water is running back down hole.Does it make sense to lower the air supply back down to 16psi to achieve this or will this inevitably result in the bladder failing? I'm not sure what the air pressure was when we moved in but we've been here for 6 years already.
This is awkward, but...
It looks like you're using an ad blocker. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. If you'd like to support the site, please allow ads.
If any particular ad is your REASON for blocking ads, please let us know. We might be able to do something about it. Thanks.