6,000 gallon pool: how much of each chemical
To raise free chlorine (FC) by 1 ppm in a 6,000-gallon pool, add 6.1 fl oz of 12.5% liquid chlorine, 7.7 fl oz of 10%, or 12 fl oz of 6% bleach.
Always follow your product’s label directions. Pool and spa chlorine, bromine, shock and algaecides are EPA-registered pesticides: use products labeled for pool or spa use, and don’t swim or soak until levels are within the limit on your product’s label. If this page and a label disagree, the label wins.
| Product | +1 ppm FC | +2 ppm FC | +5 ppm FC | +10 ppm FC |
|---|---|---|---|---|
| Pool liquid chlorine 12.5% | 6.1 fl oz182 mL | 12 fl oz363 mL | 31 fl oz908 mL | 61 fl oz1.82 L |
| Pool liquid chlorine 10% | 7.7 fl oz227 mL | 15 fl oz454 mL | 38 fl oz1.14 L | 77 fl oz2.27 L |
| Household bleach 6% | 12 fl oz366 mL | 25 fl oz731 mL | 62 fl oz1.83 L | 124 fl oz3.66 L |
| Household bleach 8.25% | 8.7 fl oz257 mL | 17 fl oz515 mL | 43 fl oz1.29 L | 87 fl oz2.57 L |
| Cal-hypo 65% | 1.2 oz35 g | 2.5 oz70 g | 6.2 oz175 g | 12.3 oz349 g |
| Dichlor 56% | 1.4 oz41 g | 2.9 oz81 g | 7.2 oz203 g | 14.3 oz406 g |
| Trichlor 90% | 0.9 oz25 g | 1.8 oz50 g | 4.5 oz126 g | 8.9 oz252 g |
Liquid chlorine percent is the trade percent on pool chlorine jugs; bleach percent is by weight. Cal-hypo adds calcium. Dichlor and trichlor add stabilizer (CYA). To shock, follow the directions on your product’s label.
| Product | Change | Amount |
|---|---|---|
| Baking soda | TA +10 ppm | 13.4 oz381 g |
| Muriatic acid 31.45% | TA −10 ppm | 15 fl oz455 mL |
| Dry acid 93.2% | TA −10 ppm | 1.25 lb584 g |
| Muriatic acid 31.45% | pH 7.8 → 7.5 (TA 100, CYA 40) | 5.7 fl oz170 mL |
| Dry acid 93.2% | pH 7.8 → 7.5 (TA 100, CYA 40) | 7.7 oz219 g |
| Soda ash | pH 7.2 → 7.5 (TA 80, CYA 30) | 8.9 oz252 g |
pH doses depend on your TA and CYA, so use the calculator for your numbers. Acid and pH-up amounts are rounded down.
| Product | Change | Amount |
|---|---|---|
| Stabilizer (CYA) | +10 ppm | 8.0 oz227 g |
| Stabilizer (CYA) | 0 → 40 ppm (new fill) | 2.0 lb908 g |
| Calcium chloride 77% | CH +10 ppm | 11.5 oz327 g |
| Calcium chloride 77% | CH +50 ppm (one step) | 3.6 lb1.64 kg |
| Pool salt | 0 → 3,200 ppm (new fill) | 160 lb72.68 kg · 5 × 40 lb bags |
| Pool salt | +500 ppm | 25.0 lb11.36 kg |
| Model | Capacity (manufacturer) |
|---|---|
| Intex Easy Set 18ft x 48in | 5,455 gal |
| Intex Greywood Prism Frame 18ft x 48in | 6,423 gal |
| Coleman Power Steel Swim Vista 18ft x 48in | 6,092 gal (not confirmed) |
On this page (9 sections)
Every pool in our model list near this size is an 18 ft above-ground round pool, and their real capacity varies by almost 1,000 gallons. If you know your model, use its capacity.
Quick answer: chlorine for a 6,000 gallon pool (depends on product)
To raise FC by 3 ppm, add about 23 fl oz of 10% liquid chlorine, 18 fl oz of 12.5%, or 37 fl oz of 6% bleach. That brings a pool at FC 1 up to 4, inside the 3–5 ppm range for stabilizer (CYA) at 40 ppm. With a 12.5% jug, one gallon lasts about seven of those top-ups.
Dose table: chlorine by product for +1/+2/+5/+10 ppm
For bigger corrections, +5 ppm takes 38 fl oz of 10% chlorine or 31 fl oz of 12.5%; +10 ppm takes 77 fl oz of 10%. Among the dry products, 65% cal-hypo (calcium hypochlorite) is about 1.2 oz per ppm and 90% trichlor about 0.9 oz. The 8.25% bleach row sits between the pool chlorines and 6% bleach, at 8.7 fl oz per ppm. "Concentrated" bleach is only concentrated compared with 6%.
Shock dose: scale your product’s label
Use the shock dose printed on your product's label and scale it to your water. 6,000 gallons is 0.6 of a "per 10,000 gallons" dose, so a label that says 1 lb per 10,000 gallons means about 9.6 oz here.
A full 1 lb bag of 65% cal-hypo adds about 13 ppm of chlorine to 6,000 gallons. That is far above the 4 ppm swim limit on most labels, so wait and retest before anyone swims.
pH and alkalinity: acid and baking soda
At total alkalinity (TA) 100 and CYA 40, dropping pH from 7.8 to 7.5 takes about 5.7 fl oz of 31.45% muriatic acid (or 7.7 oz of dry acid). Lowering TA by 10 ppm takes about 15 fl oz of muriatic acid; raising it by 10 ppm takes about 13.4 oz of baking soda. Adjust alkalinity before pH, and let the pump run 30 minutes between them. The muriatic acid calculator uses your own TA and CYA; the baking soda guide explains when to raise TA.
Stabilizer, calcium, and salt
Stabilizer: 8 oz per 10 ppm, about 2 lb for a fresh fill to 40 ppm (stabilizer calculator). Calcium chloride (77%): 11.5 oz per 10 ppm.
Salt shows how rounding works at this size. Reaching 3,200 ppm from zero takes 160.2 lb, slightly more than four 40 lb bags, so the table rounds the shopping list up to five. In practice, four bags (160 lb) put the pool at about 3,195 ppm, which is inside the usual 2,700–3,400 ppm range. Keep the fifth bag for top-ups after rain or splash-out. The pool salt calculator works from your current reading.
Pools that hold about 6,000 gallons
Three 18 ft × 48 in pools, three different volumes:
- Intex Easy Set 18 ft × 48 in (inflatable ring): 5,455 gallons
- Coleman Power Steel Swim Vista 18 ft × 48 in: 6,092 gallons (from retailer listings; not confirmed with the manufacturer)
- Intex Greywood Prism Frame 18 ft × 48 in: 6,423 gallons
Geometry alone says 6,853 gallons at a 90% fill. If you dose the Easy Set as if it were a Greywood, you add 18% too much. If you dose it by geometry, you add 26% too much. For a 3 ppm top-up with 10% chlorine, the three pools need 21, 23, and 25 fl oz. The 18 ft round pool page compares more wall heights.
Calculator preset to this volume
The calculator above is set to 6,000 gallons. If you own one of the models listed, type its capacity instead. Everything else recalculates. Nearby sizes: 5,000 gallons and 7,000 gallons.
Safety. Keep chlorine and acid in separate places, and pour each one slowly near the water surface. Wear gloves and eye protection every time. Always follow the product label. Poison Control: 1-800-222-1222.
FAQ
How much chlorine do I put in a 6,000 gallon pool?
Per 1 ppm: 6.1 fl oz of 12.5% liquid chlorine, 7.7 fl oz of 10%, or 12 fl oz of 6% bleach. From FC 1 to 4, about 23 fl oz of 10%. See how much chlorine to add for other sizes, and the liquid chlorine calculator for older jugs.
How much shock for a 6,000 gallon pool?
Follow your shock product's label and scale it: 6,000 gallons is 0.6 of a "per 10,000 gallons" dose. Where a cal-hypo label says 1 lb per 10,000 gallons, use about 9.6 oz. Stay out of the water until chlorine is back to your label's swim limit.
How much muriatic acid for a 6,000 gallon pool?
About 5.7 fl oz of 31.45% acid for pH 7.8 to 7.5 at TA 100 and CYA 40, or about 15 fl oz to lower TA by 10 ppm. Retest before adding a second dose.
Sources
- Intex, Easy Set and Greywood Prism Frame 18 ft × 48 in product pages, read 2026-09-29: intexcorp.com
- Hayward, AquaRite manual (salt range): PDF
- Formulas and reference checks: methodology