Hi,
If the water is crystal clear - does that mean the filter is working correctly?

I was thinking about replacing the sand in my sand filter which I think is an "HRP 24", 3.1 (Hayward?). That's all I can read of the old sticker on the filter because I found out from a call to Shasta (who built the pool) that the filter is from 1982!!!!!! So I was told the sand can't be replaced, it's too old and parts are discontinued. I'd have to replace the whole filter. Great....

The only reason I thought about replacing the sand is because:

1. I've been running high chlorine levels all last year due to high CYA (100). I kept getting rashes on my arms the minute I came in contact with the water....

2. I just drained the pool (2/3) to get CYA levels in check, so I can run a "normal" chem balance.

3. I have no idea when the sand was replaced last. I bought the house 2 years ago.

Should I just leave it be since the water is clear?

Thanks
C