WRS

An update on this. I continued to have issues since this post was made (nearly two years ago), So I finally replaced the zeosand with regular silica sand. The pool was green and the bottom (even in the shallow end) was not visible. After the switch, and 36 hours of filtering the pool is now crystal clear. So my problem all along has been zeosand. I've read as much as I could find online. Some people seem to have good results with zeosand. Others have my results... I've also heard that you can get a bad batch of this stuff. Who knows.... Listed here just in case others are having problems. For me, at least, problem solved.

I think the filter was back washed/rinsed only once for about 5-10 minutes before switching to filter mode. I agree with you ... I think the zeosand and the startup procedure caused this. I will try your suggestions.

Yes I was there. Definitely zeosand was used. Not sure on the amount. I looked for details on the multiport valve online but did not find anything. So I can't confirm that it is plumbed correctly. The valve is a 2" side mount. Anybody know the details on this so I can confirm if it was plumbed correctly?

I'm not at home so I don't know what exactly was used to clarify the pool. I will check on what was used when I get home.

Hi All. We just had our 60's era in ground gunite pool completely refurbished. So far we have no luck getting the water to clear. Here are the details.... Everything but the shell was replaced and upgraded. Pool size is roughly 30K gallons. We have the following setup: Pentair 1.5 hp WhisperFlo pump. Pentair Pentair Triton II TR-140 sand filter (36") Pentair Legend Platinum cleaner w/dedicated booster pump. 3 Skimmers and main drain 6 Returns Pool was re-plastered with French Grey Diamond Brite (exposed aggregate) plaster. Filter media is ZeoSand. Upon start up, acid was added to help with the plaster curing. We have run the main pump 24X7. Pressure started at 10 lbs and has remained there the whole time. Today marks 7 days since startup. Contractor didn't intially want chlorine in the pool while the plaster was curing, but we eventually shocked (4 lbs) the pool several days ago. Water is still cloudy. You cannot see the bottom anywhere except at the shallowest point. Two days ago, we added a clarifying agent which is supposed to cause the fine particles to adhere together so the filter can do it's job. So far nothing has worked. What is going on here? I know sand filter aren't supposed to filter as well as DE but this seems extreme. I wonder if ZeoSand is the culprit here. What should we try next? Thanks in advance for your help. Bill