Please help me figure out my DE filter. I think the pool guy gave me bad info.

[mukherjeeprem]

Adding the DE slurry is exactly the way I do it because the bag has instructions on it that say to do it that way.

I have had pressure spikes many times but usually after I'd brushed the pool to dislodge algae and then vacuuming. All the matter in the pool simply clogs the filter. And every time I have ever back flushed my filter and the vision glass showed clear water, when I took the filter apart there would be DE caked on the filter elements and in all the little corners. It's the DE on the filter elements that do the filtering. Don't worry too much about the corners but take the time to get all the caked on DE off the filter. Use a hose with a brass nozzle on the end and the water full blast to get a nice tight high pressure stream.

My guess is that your water has too much matter in it. If that is the case then the only thing you can do it keep back flushing and reloading the filter until things clear up.

So can you give some specific details?

1.Volume of water in the pool?
2.Exact make and model of the filter?
3.How long has the water been in the pool?
4.Above or in ground pool?

We just got this pool put in last year and it was closed immediately and then opened and swam in for the first time last week. I've already had to open it up and clean it manually which took about 2 hours and we've literally only swam in the pool twice. Something isn't right.

It's a 14K gallon pool (san juan mirage)
hayward perflex ec65a filter
pool was filled when it was installed last october
inground pool

[Manslick]

We just got this pool put in last year and it was closed immediately and then opened and swam in for the first time last week. I've already had to open it up and clean it manually which took about 2 hours and we've literally only swam in the pool twice. Something isn't right.

It's a 14K gallon pool (san juan mirage)
hayward perflex ec65a filter
pool was filled when it was installed last october
inground pool

You have the same filter I had in the beginning.
My guess is the pool is full of some kind of dirt or organic matter that is clogging the filter.
If you are getting the filter clean and adding the proper amount of DE, 6 lbs weighed, and the pressure ramps up too quickly then it has to be something in the water causing the pressure build up.

I'm not an expert on burning up free floating organic matter but I think there are chemicals that will do that. I added some Ultra Bright that claims “Our new stronger formula clarifer clears cloudy or dull water by removing even the smallest particles.” How it removes the smallest particles is a mystery to me.

I am not a pitch man for Ultra Bright Water Clarifier either, but I believe it did help mine.

Then I'd disassemble the filter and hose it with a vengeance, reassemble and get a food scale and weight out exactly 6 lbs of DE, mix it in a bucket with clean water and pour it into the skimmer.

Try the Ultra Bright.

It may take time to get the water “clean”.