2006-10-26 12:51:29 · 7 answers · asked by whiterook 3 in Home & Garden ➔ Maintenance & Repairs
Air in a pressure (bladder) tank should be approx. 2psi less than the "pump on" pressure. If your pump turns on at 40 psi and then off again at 46psi your tank pressure should be set at 38.
do this when the system is off.... no water pressure in the system. do not over pressure the tank because this will reduce the tanks water holding volume and make it less effective.... more pump cycling. it is important that the pressure is set properly so it performs properly.
If your system was working and recently is suddenly working poorly you may bave a ruptured bladder tank. needs replacing.
If you system always was crappy you might try adding a second or single larger bladder tank, this will help increase flow and reduce pump cycling.
If you have a tank without a bladder you turn off the system and simply drain the pressure tank, close the valves and restart. pressure tanks with no bladder with time can loose their air because of circulation and become less effective. Draing the excess water will bring it back to life.
2006-10-26 14:31:35 · answer #1 · answered by ryanlas 3 · 0⤊ 0⤋
Air Over Water Pressure Tank
2016-11-16 14:07:55 · answer #2 · answered by buitron 4 · 0⤊ 0⤋
Most pressure tanks have a bladder inside of them.The air is added to the bladder to create a cushion of air, as the pressure inside the tank builds up. Rule of thumb; when the pump is off and the pressure in the system is let down to 0, there should be 2# below cut-in pressure on your pressure switch. i.e.- If your pressure switch is a 20/40, meaning it cuts in at 20# of pressure and cuts out at 40# of pressure, you would want 18# on the bladder. If you have an old style tank with no bladder, it should have an air volume control that adds air every time the pump comes on. Any air you add to this type of tank will eventually escape so you would need to fix the problem with the air volume control. This is complicated and you would really need a service person to do this. Email me and I will tell you how to do it if indeed you have an old style, bladderless, tank. Hope to help!
2016-03-17 05:45:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋
You can use either an air compressor or a tank of compressed air (you can get these at auto parts stores for $15 to $25 bucks), and put air in the water tank by adding air through the air intake (should look the same as the stem on a bike tire and there should be an air pressure gage near it that will rise as you add air).
2006-10-26 13:51:50 · answer #4 · answered by deno 3 · 0⤊ 0⤋
You don't. The air is precharged in the pressure tank. If you want more flow between cycles, get a bigger tank.
2006-10-26 14:00:02 · answer #5 · answered by Jeffrey S 6 · 0⤊ 0⤋
YOU DRAIN OUT MOST OF THE WATER AND PUT AIR IN THE TANK. YOU SHOULD HAVE A FITTING THAT YOU CAN HOOK THE AIR HOSE TO SO YOU CAN PUT AIR INTO THE TANK. BRING THE PRESSURE TO ABOUT 20 PSI BELOW THE TOP PUMP PRESSURE.
2006-10-26 12:57:39 · answer #6 · answered by roy40372 6 · 1⤊ 1⤋
Use an expansion tank with a bladder, make sure it is sized for your demands.
2006-10-26 12:57:08 · answer #7 · answered by scary g 3 · 0⤊ 0⤋