Low Alkalinity/PH = Big Trouble

[jereece]

Hi. After having low alkalinity and low PH for quite awhile, we fixed the alkalinity problem and have got the ph to normal levels. However, after running the filter we have green water and what looks to be orange residue all over the pool's sides and bottom. I am guessing this is corrosion particles cleaning out of the filter(?). It is kind of hard to get off. Does anyone know what we should do? Should we drain the pool and clean it with bleach? Should we use a product like "Metal Out" to help clean it up? We've already flushed the filter. We have a fiberglass pool. Any advice would be most welcome! Thank you.

Why is low alkalinity a problem? I run my alkalinity around 50 and keep pH around 7.5. I only have to adjust pH every 2 weeks. When I use to run higher alkalinity I had bad pH problems.

Jim

[duraleigh]

Why is low alkalinity a problem? I run my alkalinity around 50 and keep pH around 7.5. I only have to adjust pH every 2 weeks. When I use to run higher alkalinity I had bad pH problems.

Jim,

Alk around 80-120 is a nice general range. It can best be described as a buffer to prevent pH from moving too quickly. I don't doubt your success at 50, but for most pools, I would consider that a little too low.