Well, it's your pool to handle how you see fit. I just look at the fact that he is trying to claim a chemistry problem is a filter problem. If there is no sand in the pool, then you don't have broken laterals - which he said you did.
We can teach you to get rid of the frustration. I'm going to guess that you have a floater with a few pucks in it and once a week you toss in some shock. You may even have the
Saturday morning ritual, dip a bottle of water out of the pool and take it to the pool store (they give you the bottle for free). They test it and sell you what they say you need to "fix" what ails your pool. What no one in the pool industry will tell you is that those products (tabs and granular shock) are almost half stabilizer (CYA). Pools like your end up being way over stabilized.
Your pool guy wants to sell you a new filter. when that don't work he is going to suggest several "chemical treatments" at an additional cost. When those don't work he is going ot blame previous maintenance and say you have "chlorine lock" and you need to start over with fresh water.
I've been here for six years. Every year we see the same thing, pool owners like yourself who follow the professional advice and just can't get their pool clear.
If you want to follow our advice it will take some work for a few weeks. The pool guy can (and won't) do it because it takes work every day and he won't believe what we are saying. Once it's clear you are in maintenance mode. I will tell you, the vast majority of folks here put two things in their pool - chlorine and muratic acid. That's it. A couple of minutes a day.
Circling back, what Marty said is right on point - you don't have a filtration problem, you have a chemical problem. Without test results I can't be "positive", but if experience tells me anything you will follow along with what I said.
Have you looked at our Pool School? Start with these:
There are several items things every pool owner should know about swimming pool water. We share details on the basics of Pool Water Chemistry.
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Which should I buy? TFP's recommended pool chemicals are cheap, easy, and won't unbalance your pool water.
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Before chlorinating your pool, you should know these simple tips. Learn the best way to add chlorine to your pool.
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