Ask Me Help Desk - My pressure tank only has one sping nut to adjust

I have really low pressure to my shower upstairs. I am going to try and put the air backinto the tank. When I first got the house I bled the air out and it only has 30 psi in the tank. My water pressure is set at 55 and my pump kicks on at 30. I wanted to adjust the tabk but I only have one large spring with a nut on it instead of 2. is there another thing that I can adjust that might be taking the place of the little spring and nut that should be there? Thank you very much for any help

I have 2 ondemand heaters but only one of them turns on for some reason, water goes through them both but only one heats I also have 2 water filtration systems and a water softner hooked up. I just can't seem to get the pressure I need and it is frustrating

Sounds like the on demand heater needs to be descaled. Most likely scale buildup is preventing the flow senser from reading flow, thus not firing the heater. As for the pressure switch, it sounds like you have a fixed differential switch, so you can only adjust the cut in/out setting, and not the differential between the two. As for the pressure tank, it should be set 2 psi below the cut in of the pressure switch when the pump is off and the tank drained of any water pressure. One other thing, if pressure is good everywhere else in the home, just not the shower, it may be a problem with the shower itself. Try cleaning the shower head, and or possibly the cartride of the shower valve.

This is the pressure tank I have.(RPT20H PART NO. 24340A512 – 20 gallon, horizontal), So if I only have one screw to adjust both cut in and cut off and it is set to cut off at 55, and cut on at 3o can I up the cut in number at all... the tank is rated for 100psi... So I didn't know if I could raise it to 70ish, And if I did do that would I raise the internal pressure to 68 first? Bleed all the lines raise it to 68, and then pressure it up to 70...

And how would I fix a Scalding issue?
Thank you so much for your help I really appreciate it. The pressure in the whole house seems kind of weak, but the bathroom and kitchen faucets arnt terribly bad, there just isn't anything being able to come out of the shower head.. thanks again

Quote:

Originally Posted by mygirlsdad77

Sounds like the on demand heater needs to be descaled. Most likely scale buildup is preventing the flow senser from reading flow, thus not firing the heater. As for the pressure switch, it sounds like you have a fixed differential switch, so you can only adjust the cut in/out setting, and not the differential between the two. As for the pressure tank, it should be set 2 psi below the cut in of the pressure switch when the pump is off and the tank drained of any water pressure. One other thing, if pressure is good everywhere else in the home, just not the shower, it may be a problem with the shower itself. Try cleaning the shower head, and or possibly the cartride of the shower valve.

This is the pressure tank I have.(RPT20H PART NO. 24340A512 – 20 gallon, horizontal), So if I only have one screw to adjust both cut in and cut off and it is set to cut off at 55, and cut on at 3o can I up the cut in number at all... the tank is rated for 100psi... So I didn't know if I could raise it to 70ish, And if I did do that would I raise the internal pressure to 68 first? Bleed all the lines raise it to 68, and then pressure it up to 70...

And how would I fix a Scalding issue?
Thank you so much for your help I really appreciate it. The pressure in the whole house seems kind of weak, but the bathroom and kitchen faucets arnt terribly bad, there just isn't anything being able to come out of the shower head.. thanks again

I wouldn't raise the cut in any higher than 40psi. If you set the cut in to 70, your cut out would be around 90, and you never want the pressure in your system to be higher than 80 max. 40-60 should be more than enough. It still sounds like you have a problem at the shower rather than a house pressure problem. Hard to say from here.

And what scalding problem are you having?

Now that I reread your original question, I would suggest taking a good long look into the filtration system and softener. If any filters are plugged, or the softner is plugged, it would be your main problem. Try removing any and all filters, and putting the water softener on bypass, see how things are then and let me know. With a cutin of 30 and a cut off 55, you should have more than enough pressure at the shower head. So, like I said, either you have a problem at the shower, or with the softener or filter settup. Keep me posted, good luck, and take care.

I really appriciate it, I will trouble shoot tonight and tomorrow and let you know, thanks again and I hope I get this fixed soon!!

Quote:

Originally Posted by mygirlsdad77

I wouldnt raise the cut in any higher than 40psi. If you set the cut in to 70, your cut out would be around 90, and you never want the pressure in your system to be higher than 80 max. 40-60 should be more than enough. It still sounds like you have a problem at the shower rather than a house pressure problem. Hard to say from here.

And what scalding problem are you having?

Now that I reread your original question, I would suggest taking a good long look into the filtration system and softener. If any filters are plugged, or the softner is plugged, it would be your main problem. Try removing any and all filters, and putting the water softener on bypass, see how things are then and let me know. With a cutin of 30 and a cut off of 55, you should have more than enough pressure at the shower head. So, like I said, either you have a problem at the shower, or with the softener or filter settup. Keep me posted, good luck, and take care.