concrete like substance on gunite pool

[wishIcould]

I've gotten no responses. I' can't attach photos but here is a link to them http://s746.photobucket.com/user/mag...ottom_concrete

Now to add insult to injury there is a 2foot vertical crack that I noticed in the deep end wall today while brushing the pool.

We had all our chemical levels perfect upon close, the pool company did all my opennings and closings. Not sure what they added.

The pool is only 2 years old and we have always had issues with the acidity. We have gone through huge amounts of dry acid and muriatic acid trying to keep pH levels down. We have brushed the pool weekly (2x a day in the beginning).

[PoolDoc]

Just looks like you have thin plaster, which has eroded, and exposed the underlying gunite. Unless you've had some major acid-washing going on, or have kept the pH below 7.2, that's an installation failure. A shell crack, after only 2 years, is absolutely an installation failure.

Didn't see any "sandy substance" in your pics, so I won't speculate there.

FC less than 1.0 with CYA > 60 ppm is an recipe for absolute failure. Read the Best Guess Chlorine page, linked in my signature, and then get a K2006 (Amazon link also in my signature).

[wishIcould]

Thanks pooldoc.
The last pictures show the underlying concrete coming through is what it does look like.

We've never acid washed the pool....

I've informed poolco regarding the crack. I have not heard back.

What would be the way to correct the crack? From past history poolco wouldn't even pressure test lines after their consultant left the pool deadheaded.... yes they replaced pipes by filter that blew and motor but I've felt there was a small leak always that possibly was underground. Could the crack be a result of the pipes leaking under ground causing ground erosion?

How would you proceed if this was your pool? What would you at a minimum expect the poolco to do for you?