Refilling Pool

[utahpool]

I'm going to empty and refill my IG pool after numerous extremely high CYA levels! I would like any advice from the experts as to things I need to be aware of and when to start adding the chemicals to the new water. I live in the desert of South Utah so not to worried about any groundwater issues. Thanks for any good advice!!

[PoolDoc]

Post your CYA levels -- you might not have to drain.

And . . . if you have a liner pool, you CAN'T drain, without damaging your pool, unless you make special preparations.

PoolDoc

[utahpool]

I have a gunite pool. My CYA levels were past 200 and my water has turned a murky green. We tested our alkalinity and it was way high also around 210, we have tried for weeks using muriatic acid and using to bleach to keep chlorine levels up for around 10 ppm, this only lighten the water to a lighter green and lowered the level to around 180. We are tired of pumping money into a seemingly never ending solution. Was thinking the best way is to get a new start with fresh water. Our water was crystal clear in April then something went wrong. Any ideas?

Thanks

[PoolDoc]

Yeah, with CYA (stabilizer, cyanuric acid) > greater than 200 ppm, 10 ppm wouldn't begin to be enough to clear your algae. And, as long as you didn't get high enough to kill it, you'd just end up using the chlorine up.

So . . . since you have a concrete pool and are (presumably) in a dry area where the pool won't float out of the ground, draining and refilling might be the best bet. You could fix things up as they are, but you'd end up running chemical levels outside the range of most test kits, and that would make things complicated and confusing.

Once you restart, let's figure out how to avoid getting your stabilizer so high! You also might want to post test results on your FILL water, so you can get the start up chemistry right.

Good luck,

PoolDoc

[utahpool]

Yes I live in the desert, so no groundwater issues. I will post my new test results after I refill. I want to get on the BBB method of maintaining my pool. Thanks for your input PoolDoc!!

[utahpool]

My pool is drained and has the dreaded green lines and such from algae, I know that an acid wash would be the best thing but can't afford that right now. What would be the best cleaning stuff to use to clean the algae marks and such?? Thanks!