Spa water chemistry

simon SPRAGG

In The Industry
Mar 13, 2020
12
COSTA BLANCA - SPAIN
New to spas, very familiar with pool chemistry.
The question is, should a spa be treated in the same way, following the LSI (CSI) saturation index, same CYA / FC ratio's etc.
Are there any special considerations?
 

Texas Splash

Mod Squad
TFP Expert
LifeTime Supporter
Jun 22, 2014
33,389
Texas, San Antonio/Marion, South-Central Area
Pool Size
17888
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-45 Plus
CSI does indeed apply to spas with plaster surfaces. Since they typically share water with the pool, chemistry would be the same. Spa water isolated by valves or programmed automation do require minimum water circulation time to ensure good chlorination.