Hey everyone. I have been lurking on the forums for a couple weeks now and reading, reading, reading, but feel ready for my first post. I received my TF-100 test kit yesterday and did my first real testing this morning!
I am new to a 30,000 gallon (18x40') in ground gunite pool (more specs in my sig). Here is what I have done so far with a couple questions at the bottom:
Opened the pool with a help of a 'friend' in the industry. Everything turned on great (except the Heat Pump which is another story). The pool was green with algae and couldn't see 1' down. Added DE to the filter but then switched the multi-valve on recirculate and shocked the pool (with powder from Home depot...). Was told to let the shock kill the algae without letting it get into the filtration alive.
Got up the next morning and the dark green was now white and cloudy - just what I was told to expect. Seems like a good start. Added DE to my filter and let it run. Brushed the edges and bottom and let it sit. spent hours reading this site, decided to disregard most other advice from my local pool guy friend, and ordered the TF-100 test kit (and the magnetic stirrer).
Still a little cloudy, but looking much better. Pulled the filter. Washed it gently with a hose. Re-added DE and then brushed the entire pool again (kicking up much less cloudiness). Later in the day figured out the vacuum and vacuumed to filter. Then figured out the polaris and let that guy run around a bit too.
Woke up to a pool that one might call clear. Definitely progress. Filter pressure has been starting at 20psi and running to 28-30 within several hours. Backwashed and re-added DE - pressure is still on high side.
Added some 3" tabs to an auto-feeder and set it low. Operating under the assumption that the less I introduce into the pool until i have real test numbers the better. Until this point have been testing with test strips.
Woke up to a pool that is crystal clear to the bottom. Could tell heads or tails on a quarter at 10 feet deep. BUT the pool does seem to have a pale greenish hue viewed in the pool - in a glass its crystal clear. My bottom is a darker gunite and it may be that. More on that below.
Ran my first real test:
-CL: 0.5 just a trace
1. Am I on the right track? Have i messed anything up yet?
2. Is it possible that I have no CYA? I think i did the test right, but the black dot seemed to get a little larger in the bottom of the vial but it in no way went away?
3. Based on my test results above I *think* I have done a pretty good job getting this open "gently". What should I do next? Assuming use pool math to determine how much bleach to add and then tackle CYA? Hoping someone can chime in to give me some confidence in my next move.
4. Is it possible that my water is green when it is clear in a glass. The three pics below are within minutes of each other. in the first its looking down 10+ feet (ignore the leaves now skimmed out) - the second looks greener - the third is looking at a sample. Any thoughts on what's going on here?
pool clear.jpgpool distance.jpgglass of water.jpg
So I recognize this is a long first post - but it seems like you guys all like the details
Thank you so much for any thoughts. I have been an active member of several other online communities over the years.
I have enjoyed the journey from neewbie to a veteran and have always appreciated the help along the way and the chance to give back when I get there.