Quote Originally Posted by fog80 View Post
im not exactly sure what kind of pump i have but i know its at least ten years old. i believe its a 3/4 hp pump by hayward.

I dont remember exactly what my starting psi was last year but i think it was in the 12-15 range.

This year my psi wont drop below 20 even when i add fresh de. I think im going to break my filter down tonight and give it an acid wash.

when you bump, does the low psi hold for a while? when i bump my psi goes down about 5 but then it goes back up very quickly. what is your procedure for bumping?
I think that might have been a common package, the 3/4 with the EC-65. I've seen it several times.

Right, once the initial cr*p is cleared from the springtime opening, my psi stays pretty stable for at least a day.

Also, I think your absolutely right to give the elements (fingers) a wash. If you're at all like me, and dislike working with acid, I've had great success with OxyClean. 3-4 scoops in a five gallon bucket of hot water. Let it soak over night then hose it off and resoak in fresh water for a couple minutes to flush.

Bumping:
-turn the pump off
-turn the valve at the inlet closed so prime isn't lost and your efforts at the handle are optimized. On my three-way Jandy this means the handle is pointed directly away from the pump.
-Press down the handle, slowly (1 to 2 seconds to depress)
-Pull sharply up
-Repeat 7 to 10 times. I usually look for the DE to start clouding the water in the clear tube that connects the pump to the filter receptacle.
-I usually take this opportunity to clean out the basket as well.
-IMPORTANT! Open the valve back up.
-Turn pump back on.