Winterize chemical kit calculator
PROClosing doses: shock, algaecide, stain-and-scale.
Short answer: Per 10,000 gal: 2 lb shock, 4 oz algaecide, 32 oz stain & scale. 20,000 gal: 4 lb shock, 8 oz algaecide, 64 oz stain & scale. Enter your measurements above and the winterize chemical kit calculator returns the quantity, unit conversions and an estimated cost instantly, in imperial or metric — no sign-up needed.
What do you need to measure?
What is the answer?
Shock (cal-hypo)
4.0 lb
Algaecide (60%)
8.0 oz
Stain & scale
64 oz
How does the winterize chemical kit calculator work?
Per 10,000 gal: 2 lb shock, 4 oz algaecide, 32 oz stain & scale.
What does a worked example look like?
20,000 gal: 4 lb shock, 8 oz algaecide, 64 oz stain & scale.
What do people ask most?
›Order matters?
Balance water first, then shock, then algaecide the next day.
Which pool calculator should you use next?
Where can you learn more?
Read field notes on estimating and materials, or browse every calculator we make.