Attached Spa in Shoulder Months

Van G

Bronze Supporter
Mar 22, 2016
264
Toronto
Pool Size
20000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
Our pool has a spa attached (shared equipment) which we use in the shoulder months. We close our pool late and open early when water temps are around 32-40.

We don’t heat the pool in the shoulder months but are able to isolate the spa and heat it (around 100).

For example - opened the pool last week (water 41) and we’ll use the spa on weekends (cover it and keep water), then mix the water back in the pool for the week.

If using the SWG for the tub (when heated) how can I figure out what percentage to run it at and how long to run it when not using (but not circulating it back into pool)?
 
Depends on your spa vs pool volume and how much FC you need to add to the spa.

I run my SWCG at 10% when in spa. That keeps the FC from climbing too much when using the spa.