MSpa Oslo (Frame, 6-person)
Quick answer
The MSpa Oslo (Frame, 6-person) holds about 304 gallons of water and measures 71 x 71 x 26 inches, seating up to 6. Full of water and people it weighs roughly 3,720 lb.
- Water volume304 gal
- TypeInflatable
- Dimensions (in)71 x 71 x 26
- Seats6
- Water weight2,535 lb
Chemical doses for about 304 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 | 0.73 oz |
| Raise free chlorine +3 ppm | dichlor granules | 0.22 oz |
| Raise bromine +3 ppm | bromine granules | 0.20 oz |
| Chlorine shock (+10 ppm) | dichlor | 0.72 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.
As an Amazon Associate this site earns from qualifying purchases. Shopping links are affiliate links and cost you nothing extra.
How much does a full Oslo (Frame, 6-person) weigh?
Its 304 gallons of water alone weigh about 2,535 lb. The tub itself is light (roughly 50 to 90 lb), so filled with water and 6 bathers it lands near 3,720 lb, almost all of it water. Either way, the water is the heavy part. Work out any tub on the filled weight calculator.
Keep the water right
A 304 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 304 gallon figure is from the manufacturer's published specification: the-mspa.com. MSpa official: 304 Gal (1150 L) filled to max water line. Up to 6 adults, 180cm/71in wide x 65cm/26in. Capacities vary with how high you fill and with seats and footwell; confirm against your own manual or a metered fill when precision matters.