$1 to $2 per 1,000 gallons.
1 Re-plastering the interior surface of an average residential in-ground pool (10,000-20,000 gallons or 14'x28' to 16'x32' and 3.5'-5' deep) with standard white plaster or marble-dust plaster (marcite) typically costs $2,500-$5,500, depending on the size, depth and shape of the pool, and local rates.  1 On average, draining a pool is going to cost anywhere from $1 to $2 per 1,000 gallons. 2  This price is to drain and refill the pool. 3  For example, a 20,000 gallon pool could cost anywhere from $20 to $40. 4  However, keep in mind that most water companies will have a delivery fee that is tacked on top of this. 1 On average, 10 to 12 gallons will be drained per minute. 2  Once the pool is drained, it’s important that it’s refilled immediately. 3  A pool will be drained if the TDS (total dissolved solids) exceed 1,500 parts per million. 4  If it exceeds this number, it can be hard to balance the chemicals. 1 This price is to drain and refill the pool. 2  For example, a 20,000 gallon pool could cost anywhere from $20 to $40. 3  However, keep in mind that most water companies will have a delivery fee that is tacked on top of this. 1 On average, 10 to 12 gallons will be drained per minute. 2  Once the pool is drained, it’s important that it’s refilled immediately. 3  A pool will be drained if the TDS (total dissolved solids) exceed 1,500 parts per million. 4  If it exceeds this number, it can be hard to balance the chemicals. 1 Draining and refilling, then adding new chemicals will refresh the water in an otherwise undamaged pool. 2  Costs for refilling a pool will vary, but the average water agency charges about $1-$1.50 per 1,000 gallons, so water for a 20,000 gallon pool would be $20-$30. 1 If you drain and refill your pool, you'll need to add appropriate chemicals to the new water. 2  The cost will depend on your pool size and type of filtering system, but generally runs $15-$50. 1 On average, most pool services will have to drain your pool, acid wash it, followed by applying the final chemicals. 2  For an average pool, the price will vary anywhere from $250 and up. 3  In a colder climate such as New Jersey, residents have stated that they pay an average of anywhere from $500 to $700 per session. 1 For an average pool, the price will vary anywhere from $250 and up. 2 1 Costs for refilling a pool will vary, but the average water agency charges about $1-$1.50 per 1,000 gallons, so water for a 20,000 gallon pool would be $20-$30. 1 If you drain and refill your pool, you'll need to add appropriate chemicals to the new water. 2  The cost will depend on your pool size and type of filtering system, but generally runs $15-$50. 1 For example, a 20,000 gallon pool could cost anywhere from $20 to $40. 2  However, keep in mind that most water companies will have a delivery fee that is tacked on top of this. 3  On average, plan on spending anywhere from $80 to $250 to drain the pool and refill it with water once again. 4  This will include no other work. 1 On average, 10 to 12 gallons will be drained per minute. 2  Once the pool is drained, it’s important that it’s refilled immediately. 3  A pool will be drained if the TDS (total dissolved solids) exceed 1,500 parts per million. 4  If it exceeds this number, it can be hard to balance the chemicals. 1 Your pool size will also determine how long it takes. 2  If you're pumping at 30 gallons/minute, or 1,800 gallons/hour, and you have a 25,000 gallon (94,635.3 L) pool, it will take roughly 14 hours to drain the pool. 1 They'll function safely at 50 gallons/minute, and top out at about 70 gallons/minute. 2  Your pool size will also determine how long it takes. 3 Discounts: 1  If you drain and refill your pool, you'll need to add appropriate chemicals to the new water. 2  The cost will depend on your pool size and type of filtering system, but generally runs $15-$50. 1 If you drain and refill your pool, you'll need to add appropriate chemicals to the new water. 2  The cost will depend on your pool size and type of filtering system, but generally runs $15-$50.
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average cost to drain pool