Don't trust Pooltek - they will rip you off!!!.
Horrible, untrustworthy company. Under their care my pool became LOADED with algae. The owner, Trey's response was to try and convince me how lucky I was he wasn't charging me extra for chemicals to clean up HIS company's mess! Wow... Then, after I fired them - he sent me a bill with charges for work NEVER performed by his company. Again... wow... I am currently fighting him on this and will get a lawyer and go to court if necessary. STAY AWAY!