I should try this DE...what exactly is this. I'm still new to this...so dumb questions I know. I've heard of adding this to the skimmer, etc. What does. this do and how do I get it. I'm reading this thread and it looks like the psi increases drastically when adding, but afterwards (after a second dose of DE) it ceases to increase so much. I have so much pollen in my pool. I do have the Duda Bag on my return jet...it's awesome. Will the DE help with the pollen. I mean, what exactly does the DE do? and would I need it? Water could be a bit clearer, though the Duda bag is helping a lot.
Mendy - My impression is that the Duda Bag and the DE do very similar things. The DE basically forms a fine layer on top of your sand to filter out tiny particles that might otherwise get through the sand. See Adding DE to Sand Filter -- I have done this a fair amount this year. Just mix 1/4 cup of DE with water in a bucket, slurry it around and slowly add to skimmer basket. Check pressure 2-3 minutes later. Repeat until PSI goes up 1 tick. After that check PSI every 30 minutes or so, and backwash when it goes up 20-25% above baseline (or 10 PSI depending on how you roll).
This post struck my interest. Today, I ordered 3 lbs. of Fiber Clear from E-Bay (Pool Store) for less than $20. I actually called the company and they put me in touch with the owner (spent over 45 minutes on the phone) and he is really a nice person. Also gave me he e-mail with for direct communication. Stated that with my pool, about 20 oz. by volume, not lbs. which is a big difference should be placed all at once in the skimmer. This will cover the surface by 1/8" of the top of the sand.
The turnover of the pool, which I believe happens in about 4 hours will yield filtering (20-35 microns) from a sand filter down to 2 microns (at least what I am told). My pressure should rise considerably in the first few hours or the day, and then I will have to backwash. Repeat the step and now my pool water is filtered all the way down to 2 microns (Again repeating what I have been told). He also stated, that because the product works so well, that everything will be filtered at this level and backwashing may have to be done even as much as once a week. I am used to once a season as my pressure rises about 1 psi at most.
Once the product comes in, I will start a new thread with very detailed information. Even though my water is crystal clear, at night you can easily see smaller particles floating around in the water.