AquaRest AR-300
Quick answer
The AquaRest AR-300 holds about 160 gallons of water and measures 81 x 65 x 31 inches, seating up to 2. Full of water and people it weighs roughly 1,936 lb.
- Water volume160 gal
- TypeHard-shell
- Dimensions (in)81 x 65 x 31
- Seats2
- Water weight1,334 lb
- Empty weight232 lb
Chemical doses for about 160 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 | 0.38 oz |
| Raise free chlorine +3 ppm | dichlor granules | 0.11 oz |
| Raise bromine +3 ppm | bromine granules | 0.11 oz |
| Chlorine shock (+10 ppm) | dichlor | 0.38 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 AR-300 weigh?
Empty, the AquaRestAR-300 weighs about 232 lb. Its 160 gallons of water add about 1,334 lb, and 2 bathers add roughly 370 lb more, for a loaded total near 1,936 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 160 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 160 gallon figure is from the manufacturer's published specification: aquarestspas.com. Manufacturer spec sheet. Plug-and-play. 160 gal, 2-person, 20 jets. Capacities vary with how high you fill and with seats and footwell; confirm against your own manual or a metered fill when precision matters.