You can order water by the tanker load almost anywhere in north America.
If you live in Fraser Valley, BC I can recommend a water company, but you don't say where you are.
A 16-foot by 32-foot by 4-foot pool can hold up to about 15,320 gallons of water.
.03g/L or 30 ppm or 1 lb for 3800 gallons (14400 liters)
15' diameter round pool 4' deep 15'^2/4*pi*4'*7.48(gal/ft^3)=5287 gal
There are 7,985.76 gallons of water in a 1799.5 cubic feet pool.
Is the pool a circle? Do you want US gallons, or Imperial gallons?
A pool this size can hold up to about 5,250 gallons of water.
A pool of this size can hold up to about 11,970 gallons of water.
How many gallons of water for a 15'x30' swimming pool?
This pool can hold a maximum of about 5,707.6 gallons of water.
This pool, when filled with 4.5 feet of water, will contain about 15,300 gallons of water.
For this size pool, about 4,862.3 gallons.
This pool can hold up to about 15,148 gallons of water. (this would fill the pool to the very top).