Alternative Sanitizing Systems
The different types of Alternative Sanitizing Systems, are often, not very compatible with each other, but the ones that can work friendly with each other seem to be the most effective way to go. The first rule of thumb we use is, don't replace a chemical, with another chemical that we have to use more of, that is a trade off, not progress. Most of the systems we endorse, work well with ozone, chlorine, bromine, salt, and/or ionizers. Each part of the system does a percentage, the more steps, the higher percentage of sanitizer demand reduced. The equipment system must function together, it does require longer run times, up to 23 hrs. daily (even the
hardest working equipment needs 1 hour of rest, just to let the d.e. filter cake relax and reposition.). A pump that can work well with pressure and flow should be connected directly to the Diatomaceous Earth Filter. Absolutely, no poolsweep valve, between the pump and filter, pool cleaners should either be booster pump driven or suction. Period. Filtering ALL of the water, before allowing ALL of the water t be mechanically sanitized, is only good logic; leave two speed pumps on portable hot tubs and off pools, it is a waste of electricity to operate a pool on low speed when you can't get enough flow to operate the venturi of the ozone generator!
Logical forethought,
should be applied when thinking about what is needed, hopefully when the pool is constructed / installed, or maybe, even later, when corrections to ineffectiveness, can work, seeming, miracles.
We will start listing each step of alternative systems, with a short explanation.
- Pump - Set on an automatic timer for daily operation, Self priming, High flow (high head if heater used). Full rated (up-rated 1.5 hp = full rated 1.0 hp) pumps size 3/4 - 1 hp .... 1.5 inch i.d. pipe, 1.5 - 2.0 hp ... 2 - 1.5 / 2.0 i.d. pipe, 2.0 - 3.0 ... 2 - 2.0 / 2.5
i.d. pipe
- Filter
- A Diatomaceous Earth filter, filters a ONE (1) micron particle. Better filtration, simply makes or breaks a system. 36 sq. ft. for up to 5,000 gals (3/4 hp), 48 sq. ft. for up to 35,000 gallons ( 1.0 - 2.0 hp) 60 sq. ft. for up to 45,000 gallons (2.0 - 2.5 hp), 72 sq. ft. for up to 60,000 gallons (2.5 - 3.0 hp)
- A timer operated poolsweep, so as to only operate a couple of hours daily is preferred, if a booster driven poolsweep is not practical, only a
suction cleaner should be used. The automatic pool cleaner is busy keeping algae from getting a foothold by removing it as it scrubs, or vacuums, the pool.
- Adjust the return (back to pool) fittings for maximum circulation, maybe even to where they can keep the steps clean, then adjust the others to move the water in that direction clockwise (or counterclockwise), more complete circulation will mean better control of the entire water system, uniformity.
- Remove Phosphates from the water, and use maintenance doses. Algae uses phosphates as nutrient, removing phosphates doesn't quite starve algae to death, but it does greatly affect the incidence of infestation.
- Using natural enzymes to aid in breaking down contaminants and oils, reduces the need for clarifiers and helps the more natural resolution of problems.
- Using a passive ionizer
can help in the same way the drinking water filters help. They reduce the need for high sanitizer levels by killing the algae and bacteria, as the water passes through the unit, with silver and copper (or zinc). It takes less sanitizer to oxidize than kill the algae originally! Compatible with
both Ozone and with salt water chlorine generators. Claims of 80% reduction, we are pleased as punch with a 40 - 60% reduction, we haven't seen 80%.
- An
Ozone generator creates sanitizer, by passing air across an ultraviolet lamp, where ozone is created 'out of the air', then injecting it into the water, using a venturi in the equipment pad, before it returns into the ground, the venturi works well, and eliminates the need for an compressed air version. Community Water systems across the country have been informed that they must convert to Ozone immediately for sanitizing drinking water! It is 15 times more effective than chlorine, and passes out of the water in moments, you actually cannot test for Ozone in the water,
and find any 5 minutes after it is turned off! The purity of the water is the great blessing of Ozone, more people accuse me of filling my pool with spring water, because 'it feels so much better than normal swimming pools'. Compatible with passive ionizers and with chlorine generators, ozone should be as standard piece of equipment as a pool cleaner! Reduces tablet use by 40% - 100%, depending upon the pool and conditions, and reduces the dreaded drain for stressed water to almost never!
- Chlorine generator
come in two flavors, salt in pool water, and salt in separate tank. The salt in separate tank systems have proven to be a lot of hassle, and expensive to maintain. We prefer the salt in water systems, at least they seem to be working the bugs out better. Main benefit is that it keeps a constant level of chlorine in the pool, eliminating the peaks and lows of normal tablet chlorination, which is a major cause of algae infestation. Chemical levels drop before time to shock, oops, algae came to visit. Eliminates tablet use, can be ran on very low
levels with an Ozone unit and /or passive ionizer.
- Aerate the water, it breaks up the ammonia nitrates, just like in the water treatment plant. Fountains should be operating, algae uses nitrates. also. If fountains aren't part of your pool, they can be added, replacing a return fitting, with a fountain head! Cheap and the benefits can be heard year round. It even helps to cool the pool in summer, maybe 5 - 10% help toward chemical reduction, by creating water sounds for your personal paradise. Awesome.
My pool is approximately 40,000 gallons, it is shaped like a giant lightning bolt. It is presently equipped with:
- Polaris model 280
Vac-Sweep, booster pump and automatic timer, daily run cycle approximately 1.5
hours. Dispenses ozone at the bottom of the pool, while cleaning the pool.
- Nature2 Professional model RG, with 2 inch ports
- Swimquip (Sta-rite) model DES-60 D.E. Filter (new
model equivalent, StaRite S8D110)
- Sta-Rite Duraglas 1.5 hp pump
- Ozone Generator, capacity 50,000 gallons, with induction
through the drain plug of the main pump ($950.00)
- Polaris wall mount fountain ($45.00) Remove a
pool return fitting along a wall that is either straight, or curved away from
the pool. Replace the fitting with the Polaris connection and attach the
fountain. Simple!
- Dual skimmers, and main drain plumbed separately, with 2 inch plumbing and individual valves
- Regular use of a Phosphate remover (Phos Free, by Pool Perfect Step 1, initially, & maintained by Step 2)
And for the record, my pool is NOT an easy pool to keep sanitized. It has giant Chinese Photinas surrounding the pool (35 feet tall, around 12 meters. Alcoves cut out, for the statues, of course!) and a pack (three to five at any time) of
(sometimes seemingly, crazed) Husky-Wolves destroying the pool's serenity on a regular basis. They have been known to hide and bury equipment while we work on the pool! They regard the pool as their personal drinking and swimming hole, and are continuously contaminating the water with some new and creative manner. I would give up chlorine, rather, than my precious babies, so alternative methods have become a major driving force. My pool,
10 years ago, used 5 large tablets with 2.5 lbs. of shock on a weekly basis (not counting algaecide and such).
Eight years ago, we installed the Nature2 Professional model and the chlorine demand dropped to 3 tablets and 1.5 pounds of shock weekly. Algae levels and occurrences were easier to control, and less often. We added two wall mounted fountains to break up ammonia nitrates (a nutrient algae needs, formed by waste in the water, or by fertilizer getting into the pool) by aerating the water more, and anytime algae did actually develop, it took far longer to spread.
Five years ago, we added an Ozone generator to the pool and have decreased even further, the amount of chlorine demand. Only 1
tablet and 1.0 lbs. of shock every week or two, satisfies the sanitizer demand.
Three years ago, we began testing phosphate remover (Algae needs phosphates for nutrient. No phosphates means algae starves!). No algae has been able to establish a colony in the pool, the water quality has surpassed even my wildest expectations. When testing the water with standard test reagents, no visible traces of chlorine is present, the base (alkalinity) and pH are absolutely stable. We have found that maintenance dosages of natural enzymes have extended the filter cycles and helped break up the oils that build up in a pool on the waterline.

I also use the same sort of technology to keep my turtle tanks (mostly, Texas native Red Ear Sliders) clean and clear. They are healthy and happy turtles with ozone pure water for three years. We save a lot of baby turtles (also snakes, frogs, skunks, rabbits, etc.) from pool skimmers, and with home development, the creeks and ponds get houses built where they lived, so I keep them (turtles) until they are a couple of years old, then release them into Lake Lewisville, to live happy turtle lives.