Baq to BBB converter sentenced to nightly pours?

[duraleigh]

Without CYA, you will never be able to keep a chlorine residual. Virtually no one on this forum tries to maintain a pool at zero CYA.

I have not read the thread you are referring to but something in it is misleading or you have misinterpreted it. 30-50 is a typical level for pools without an SWG and I would encourage you to add it now.

[tenax]

the only negative i've noted is some people talking about how if i understand correctly you need to use more chlorine dose if you use cya, but...aside from that.....i don't see a downside.

[ivyleager]

You need CYA...put it in. Either via tri-chlor pucks (which will allow you the luxury of not having to put bleach in every night), or by adding dry CYA directly to pool. The pucks have CYA and chlorine, you'll get both chemicals this way. However, the pucks are acidic and have the tendency to drive pH down. You'll need to monitor that.

My pool is in direct sunlight all day and has moderate bather loads every day. My CYA is currently at 70ppm. Chlorine holds at about 3-5ppm for approximately 2 full days. All things being equal and no extraneous variables (pool party, heavy rains) I add 3qts of bleach every other evening. My pool is fairly large: 24,000 gals. With larger pools you will go through a TON of bleach. You have a BIG pool. Without CYA, the chlorine will not hold in your pool. You will go through a lot of bleach...>$100/season.

SWG should pay for itself in a few seasons just on bleach costs alone. However, your time and convenience is also a cost. I'd get the SWG.

CaryB

[Watermom]

I agree with the posts above. You are not going to be able to keep any chlorine in your pool without cya. Shoot for a target of 30-50. Let us know if we can help again. Good luck.