A brief word about indoor pools...
Indoor commercial pools are a special animal that require additional care. Although they may not be subject to Mother Nature and the elements directly, because they are enclosed (most not well ventilated), they are unable to do one important thing: BREATHE.
Breathing is important because after a shock or oxidizing treatment, that waste material needs to gas off into the atmosphere. In an indoor pool, that's just not possible. Instead of gassing off, a lot if not most of the gaseous waste in the form of nitrogen, simple hits the ceiling and falls back into the pool water causing a re-formation of chloramines (combined chlorine that we don't want). Even if there is a great ventilation system, its' still not the same as an open air pool.
Three important things to keep in mind:
Powered by ParPools.com
Aside from the regular pool care that your team has developed and approved, ParPools.com as designed Three Foundations which supplement and support all that which you are performing. The Three Foundations work synergistically with each other and with whatever water chemical care system your particular pool has implemented.
Briefly, here are the 3 Foundations:
The commercial pool you may be in charge of demands that you provide the best in maintenance for your client bathers and for the economical operation of the facility. Proper implementation of the 3 Foundations mentioned above will certainly add to the overall ease of maintenance.
Commercial and/or volume sizes of AquaFinesse Pool Water Care Tablets and NaturCare Enzymatic Pool Clarifier are available. We're happy to work with you.
ParPools.com believes that that pool should be the center of summer or year-round fun, not work and worry. We're working hard to make that happen!
ParPools.com KNOWS this treatment and prevention system WORKS. We have a growing list of commercial and institutional pools who are having great success as they follow our advice and use the products we prescribe. The changes in pool and pool water quality are quite dramatic.
Join our family of mold and slime free pools! We're always ready to answer your questions and help with technical issues. Just call us at the number above.
Click here for Commercial Products and Sizes.
PoolMoldSolutions.com Copyright 2014, All rights reserved. Par Inc of Conn, ParPools.com
Although most commercial pools are well run and maintained, they're not perfect and wide swings in bather load plus the "lack of care" of users (not showering, heavy use of suntan or other lotions), can and will contribute to biofilm build up.
Another "cause" for pool mold and slime is from inadequate or lax water treatment - lack of maintaining good water balance, proper sanitizing levels, inadequate shocking or oxidizing routines, etc. This is NOT typically the case because third party entities (state and local health departments for example) are usually overseeing pool and its maintenance.
Commercial pools are regarded as swimming pools that particularly cater to larger groups of swimmers and bathers that you could consider "transient". In other words, it's not just a family of 4 or 6 using the pool. The number of users could be 100 or more times that depending on the particular pool. Pool size and gallons run the gamut from about 15,000 gallons all the way up to hundreds of thousands of gallons!
All commercial pools (all 6 classifications), regardless of any of the parameters mentioned above share several common things: water, a main surface, plumbing lines, a filter system (sand, diatomaceous earth - DE, or cartridge), all of those things often being significantly larger and more complex. There's also some type of treatment system. Treatment systems are typically limited to some type of chlorine system that is mandated by the state and local health authorities.
The overwhelming majority or these commercial pools are of gunite construction with many having a surface of inlaid tile of some kind. Needless to say, the surface area of these pools is huge, and due to the "porous" nature of the gunite or plaster or grouting, these surfaces are the perfect breeding grounds for biofilms, mold and slime.
Whatever system you have or are using, and regardless of how well the pool is treated and cared for, biofilms will grow and eventually lead to potential mold and slime issues. Pool mold and slime will grow anywhere it can gain a foothold.
Another important aspect of indoor pools is a lack of natural oxidation. You may think, "what the heck does that mean? We're shocking the pool regularly and even using an ozone generator plus a UV device. That may all be well and good, but chemicals and devices will never substitute for the natural oxidation of pure unfiltered sunlight on a swimming pool. Natural UVA and UVB are the best oxidizers known.
The pool show above has little or no direct natural sunlight beating on it. The resort pool on the left is exposed to plenty of that natural oxidation. Sunlight may contribute to SOME algae growth in pools that aren't properly treated, but the natural oxidation certainly compensates.
When the sun is shining on swimming pool without a dome or other filter, ALL of the exposed pool's surfaces are being exposed to this ultra-violet light.