Cal Spas Platinum Laguna
Quick answer
The Cal Spas Platinum Laguna holds about 425 gallons of water and measures 84 x 84 x 40.5 inches, seating up to 6. Full of water and people it weighs roughly 5,505 lb.
- Water volume425 gal
- TypeHard-shell
- Dimensions (in)84 x 84 x 40.5
- Seats6
- Water weight3,545 lb
- Empty weight850 lb
Chemical doses for about 425 gallons
Computed for this tub's water volume, so you can dose without doing the arithmetic. Amounts are ounces by weight.
| To do this | Chemical | Amount |
|---|---|---|
| Raise total alkalinity +10 ppm | sodium bicarbonate | 1.0 oz |
| Raise free chlorine +3 ppm | dichlor granules | 0.30 oz |
| Raise bromine +3 ppm | bromine granules | 0.28 oz |
| Chlorine shock (+10 ppm) | dichlor | 1.0 oz |
Open the dosing calculator for this tub
Add in small steps with the pump running, wait, then retest before adding more. Never mix chemicals together, and always follow your product label, which wins over any calculator.
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How much does a full Platinum Laguna weigh?
Empty, the Cal SpasPlatinum Laguna weighs about 850 lb. Its 425 gallons of water add about 3,545 lb, and 6 bathers add roughly 1,110 lb more, for a loaded total near 5,505 lb. Make sure your deck or pad is rated for it. Work out any tub on the filled weight calculator.
Keep the water right
A 425 gallon tub doses in small amounts, so a kitchen scale and small additions beat eyeballing it. Test, balance alkalinity then pH then sanitizer, and use the dosing calculator sized for this tub. Start with test strips and a chemical kit.
Source
The 425 gallon figure is from a major retailer or authorized dealer listing: www.ratnaspaspatio.com. Cal Spas Platinum Series. 425 gal. Authorized dealer listing. Capacities vary with how high you fill and with seats and footwell; confirm against your own manual or a metered fill when precision matters.