Cal Spas Escape EC-851L (Atlantic)
Quick answer
The Cal Spas Escape EC-851L (Atlantic) holds about 450 gallons of water , seating up to 6. Full of water and people it weighs roughly 5,763 lb.
- Water volume450 gal
- TypeHard-shell
- Seats6
- Water weight3,753 lb
- Empty weight900 lb
Chemical doses for about 450 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 | 1.1 oz |
| Raise free chlorine +3 ppm | dichlor granules | 0.32 oz |
| Raise bromine +3 ppm | bromine granules | 0.30 oz |
| Chlorine shock (+10 ppm) | dichlor | 1.1 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 Escape EC-851L (Atlantic) weigh?
Empty, the Cal SpasEscape EC-851L (Atlantic) weighs about 900 lb. Its 450 gallons of water add about 3,753 lb, and 6 bathers add roughly 1,110 lb more, for a loaded total near 5,763 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 450 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 450 gallon figure is from a major retailer or authorized dealer listing: thehottubpeople.com. Cal Spas Escape Series. 450 gal. Dealer page from manufacturer data feed; dimensions not confirmed. Capacities vary with how high you fill and with seats and footwell; confirm against your own manual or a metered fill when precision matters.