Doses for this tub
| Job | Amount |
|---|---|
| Chlorine +1 ppm (dichlor 56%) | 1.7 g |
| Fresh fill 0 → 4 ppm (dichlor) | 6.7 g (about 1½ tsp) |
| Chlorine +1 ppm (8.25% bleach) | 11 mL |
| Bromide reserve 30 ppm | 36 g |
| Non-chlorine shock, weekly | 53 g |
Bestway Lay-Z-Spa Vegas AirJet (4–6 person): volume and chemical doses
The Bestway Lay-Z-Spa Vegas AirJet (4–6 person) holds about 935 litres (247 US gallons) for 6 people. For that volume, 1.7 g of dichlor raises chlorine by 1 ppm, and a fresh fill needs about 6.7 g to reach 4 ppm.
Test results for this tub
Not safe: do not get in yet.
Two things to fix. Start with ph.
pH 7.9 → 7.5
Lower it
Add
0.26oz
of Dry acid / pH minus (sodium bisulfate 93%)
7.3 gabout 1¼ tsp by volume
- Side effects: TA −3 ppm.
- Run the jets with the lid open and wait at least 15 minutes (20 after pH decreaser) before anyone gets in.
- Never add acid and chlorine together or in the same spot: mixing them releases toxic chlorine gas. Let the first one circulate before adding the other (the wait is shown on each step).
Then wait 15 minutes with the jets running.
Free chlorine 1 ppm → 4 ppm
Raise it
Add
0.18oz
of Dichlor granules 56%
5 gabout 1⅛ tsp by volume
- Side effects: CYA +2.7 ppm, TA −1.1 ppm.
- Also raises cyanuric acid (stabilizer). It only comes down by replacing water.
- Run the jets with the lid open and wait at least 15 minutes (20 after pH decreaser) before anyone gets in.
- Free chlorine is below the minimum for your stabilizer level.
- Use dichlor for the first week or two until stabilizer reaches about 30 ppm.
In range
- CYA 20 ppm
- TA 70 ppm
- Use dichlor for the first week or two until stabilizer reaches about 30 ppm.
Check the product label. Strengths vary by brand, so enter the % printed on yours. Add one chemical at a time, into the water, and never mix chemicals.
- CDC recommends not using stabilizer (cyanuric acid) in hot tubs, because it slows chlorine down. The dichlor-then-bleach method keeps it to about 30 to 40 ppm; bleach only keeps it at zero.
Save this test and get a reminder before your next soak.
Spa Calc for iPhoneComing soon to the App StoreHow often to drain it
| Use | Drain |
|---|---|
| 1 soaker a day | every 82 days |
| 2 soakers a day | every 41 days |
| 3 soakers a day | every 27 days |
Rule of thumb: US gallons ÷ 3 ÷ soakers per day. Drain sooner if the water stays cloudy or foamy after shocking.
Where the volume comes from
Capacity from a retailer listing, not yet confirmed in the manual: Retailer listing (piscinasferromar.com): 'Water capacity: 935 liters'; not yet confirmed in a Bestway manual. Size: Ø 196 cm × 61 cm. Inflatable capacities are usually stated at the fill line, often 80% of the brim. Check your manual or box before dosing.
We are not affiliated with Bestway Lay-Z-Spa. The brand name is used only to identify the tub.
Questions
How many litres is the Bestway Lay-Z-Spa Vegas AirJet (4–6 person)?
About 935 litres (247 US gallons) at the fill line.
How much chlorine for the Bestway Lay-Z-Spa Vegas AirJet (4–6 person)?
1.7 g of 56% dichlor per 1 ppm, or 11 mL of 8.25% bleach.