I have only owned my home with an in ground pool for one year now, and towards the end of the season last year, I just couldn't fight off the algae/pollen. I think it may have been pollen, due to low FC loss, it was a yellow/green color and would settle on the bottom of the pool and puff up in big clouds when brushed.
Anyhow... I was finally able to beat it when I noticed that the sand in my filter was incredibly low, so I did a complete sand replacement, the sand on top was a black/green mess, I also wanted to check my laterals. I think I may be backwashing too often, but have also noticed sand in the sight glass when I do backwash.
Is sand loss normal when backwashing?
I was accustomed to backwashing often due to the SWAMP I had when I opened last year. My concern is this, how often should I have to add sand to my filter? I would think never, but it seems like it may be a problem, what can cause this?
I plan on opening this weekend, and getting a new pressure gauge for my filter.
Are there any recommendations on gauges? I know to get a water filled one, but where can I find one?
Thanks in advance.