Jacuzzi J-495
Quick answer
The Jacuzzi J-495 holds about 520 gallons of water and measures 94 x 94 x 39 inches, seating up to 9. Full of water and people it weighs roughly 7,141 lb.
- Water volume520 gal
- TypeHard-shell
- Dimensions (in)94 x 94 x 39
- Seats9
- Water weight4,337 lb
- Empty weight1,139 lb
Chemical doses for about 520 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 | 1.2 oz |
| Raise free chlorine +3 ppm | dichlor granules | 0.37 oz |
| Raise bromine +3 ppm | bromine granules | 0.35 oz |
| Chlorine shock (+10 ppm) | dichlor | 1.2 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 J-495 weigh?
Empty, the JacuzziJ-495 weighs about 1,139 lb. Its 520 gallons of water add about 4,337 lb, and 9 bathers add roughly 1,665 lb more, for a loaded total near 7,141 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 520 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 520 gallon figure is from the manufacturer's published specification: jacuzzipartners.com. Manufacturer handbook. Average fill 520 gal; full spa volume 620 gal. Seats 8-9. Capacities vary with how high you fill and with seats and footwell; confirm against your own manual or a metered fill when precision matters.