First post, I have a high pressure reading 35psi

[bri3180]

My question is why is the filter run cycle so short? You should not need toe cleaning the carts once a week or more!
Either your carts are gunked up (from acid washing before degreaging them--unlke PoolDoc I have seen this occur and can confirm this), there is an abnormal amount of 'crude' in your pool being filtered out (such as plaster dust from curing plaster or a constant algae problem), or the flow rate might not be correct (a pump issue). I would be interested in seeing a full set of water tests.

So there is no turning back once you acid wash before degrease? Do people commonly make this mistake? I spent months asking questions to people in the business and nobody seemed to know any solutions.

[PoolDoc]

Whether the damage is permanent or not, depends on what was on the filter when you acid washed it. But, I think the mistake is pretty common . . . as is destroying filters by 'cleaning' them with a pressure washer.

The pool industry -- like many others -- is not notable for the knowledgeability of its members. But, do keep in mind that most people in the pool business don't clean filters -- they build pools, finish plaster, sell chemicals, etc. And, they may be able to do those things quite well, without knowing a think about cartridge filtes.

Also, keep in mind, that many (most?) pool industry members don't LIKE pools or swimming, themselves.

[waterbear]

So there is no turning back once you acid wash before degrease? Do people commonly make this mistake? I spent months asking questions to people in the business and nobody seemed to know any solutions.

If properly degreasing the filter does not solve the problem then replace the cart.
Simple.

[bri3180]

Today I put two cartridges in another degrease bath and I used my fingers to dislodge the "gunk" between the pleats. Before I finished the first cartridge, the solution in the bath was completely cloudy. I have not done the same to the other 3 yet. I was wondering if I am wasting my time with these filters or if I should continue cleaning between the pleats or just replace. As soon as I get this figured out, I will like to tackle the chemical aspect of the equation. Thank you again for your response. Brian