The Natural Chemistry stuff, Pool Perfect etc., works well but is only in addition to your normal 4-5 chemicals.

You need chlorine
You need to...

I will try to wipe down the sides. The longer the algae stay there, the longer it will take you to clean it later. It will also prevent further...

My experience is low but I think a pool store should have patch kit that works underwater.
Because of the water pressure pushing out I think you will...

you can just aerate the water to get the pH higher the rest of the way.

This is working :shock:

I put our garden pump and pumped water out...

Thanks a lot!! Your advice about the impeller was right on. I just reached in there and found a bunch of leaves and seed casings. Once they were out,...

If it's a cloudy darker green that looks like algae growth, then read Defeating Algae . You can completely clear your pool using chlorinating liquid...

Though walking around the pool slowly pouring the chlorine with the pump running is OK, it's even better to pour it slowly over a return flow since...

I will try and help you.

The pump will have 1 pipe going into the pump horizontally, this is the SUCTION side of the pump, 1 pipe leaving the pump...

I'm not sure what you mean by this. Do you mean this link to the Pool School at Trouble Free Pool?

Polystyrene will compress so I would go for the thinner one. If the thicker one compresses differently you will end up with bumps and holes all over.

Keep cleaning the filter regularly until the water rights itself and the filter pressure stops building up so quick.

If you're gonna empty the pool...

Pool size is 20 x 40 x 8, vol 35K gal with a DTH of 50’s
Pool is about 48K gallons.
What is DTH ?

Consider Pentair Intelliflo which will allow...

Thanks guys,
I'll get my kit, start testing, writing and let you know about my progress!
Much appreciated

You don,t say what the size of cartridge filter you have ?
1. It might be grossly undersized and so the time between cleaning is just a function of...