I usually do my own startups but decided to hire a professional this year (since I ended up having them close my pool in the fall).
They botched the opening pretty bad. Most equipment wasn't started, antifreeze wasn't purged, they dumped most of what was on the cover into the pool, etc.
Anyways it took me about 2.5 weeks to clean up the mess and finally get the pool clear enough to see what was going on (it was extremely cloudy).
Once it cleared up, I noticed the liner was extremely light everywhere under the waterline (this was a deep blue liner the same company installed last June for me, so less than a year old). I kept the water well balanced over the last two weeks trying to get it cleared up. The only time was after they left FC was high.
I realized now they had told me they added and billed me for 30L of liquid chlorine while they were opening it. This is a 75-80,000L pool and would have been about 20" down on water when they added this chlorine. I've never used liquid chlorine but this seems to be excessive doesn't it? Could this be why things had faded?
They botched the opening pretty bad. Most equipment wasn't started, antifreeze wasn't purged, they dumped most of what was on the cover into the pool, etc.
Anyways it took me about 2.5 weeks to clean up the mess and finally get the pool clear enough to see what was going on (it was extremely cloudy).
Once it cleared up, I noticed the liner was extremely light everywhere under the waterline (this was a deep blue liner the same company installed last June for me, so less than a year old). I kept the water well balanced over the last two weeks trying to get it cleared up. The only time was after they left FC was high.
I realized now they had told me they added and billed me for 30L of liquid chlorine while they were opening it. This is a 75-80,000L pool and would have been about 20" down on water when they added this chlorine. I've never used liquid chlorine but this seems to be excessive doesn't it? Could this be why things had faded?
But in short, if they just arbitrarily dumped 8 gallons of bleach in there without confirming the CYA level, there's a good chance it was too strong. Note, I based my estimates off of regular 8.25% strength. Some technicians use 10 or 12% strength, so you can see how the FC could've been much stronger.