Unlike Pebble Tec pools, Plaster pools require constant moisture to remain stable. Draining a plaster pool in the middle of the Pretoria summer can cause the surface to crack, pop and pit. Often times the best course of action with an older plaster pool is to let it continue to deteriorate until you are ready for a new pool surface (resurface or replaster).

So what defines an old plaster pool? As a rule of thumb we do not drain plaster pools older than 8 years (others may determine is safe), we do not drain ANY plaster pool in temperatures above 26 degrees Celsius.

When faced with a must drained situations, such as a green pool or “dead water”, we require our customers to sign a plaster drain waiver in which the customer understands the volatility of the aged plaster and the adverse reaction draining a plaster pool can inherit.

Caring for an older plaster pool can be quite the “money pit.” Because old plaster does deteriorate and become very porous, organisms such as black algae and mustard algae can harbor itself within the surface itself and high amounts of chemicals may not have any affect on the those burrowed organisms.

Being that plaster is so temperamental, even with colder weather and new plaster we drain towards the evening and continue necessary maintenance in the morning. As a plaster owner, you must understand the nature of the surface and how to best treat it. We recommend letting a Swimming Pool Professional such as Pool Renovators handle the work. With so many cons, the pros are obsolete.

Get in touch with Pool Renovators for a quote.

Curated from http://www.poolfix.com/single-post/2016/04/26/Draining-an-Old-Plaster-Pool-Think-Again