I was chatting with someone at a sport's game and they mentioned that someone they knew put in a salt water rather than fresh water pool in the back yard. Not one for a pond of fish.
1) Are there any advantages to this?
2) Someone mentioned that their child has eye problems with the chlorine in pools. Is their a non-chlorine based pool treatment for fresh water pools that will not irratate their kids eyes?
Thanks much,
Lawrence M. Seldin, CMC, CPC
Contributing writer for FUTURES Magazine Author of RECRUITSOURCE PEOPLESOFT EXAM and RECRUITSOURCE SAP/R3 EXAM Author of POWER TIPS FOR THE APPLE NEWTON and INTRODUCTION TO CSP
NOTE: To send me an email, remove TAKEOUT from my email address: snipped-for-privacy@seldin.net
add enough salt and no one can drown. high salt concentrations make people float.
if the person were along the beach they could pump berach water from the ocean, filtering it and change water endlessely with the ocean, no chemicals needed.
some cruise ships had salt water pools, i prefer clean fresh water myself salt YUK
For swimming pools, you mean? Advantages are convenience (not hauling chlorine) and stable quality (automatic dosing). Cost is about a wash, when you consider the true costs of investment, depreciation and electric power. Disadvantages are a complex gadget with risk of non- performance or failure, stray electric currents in pool if unit not installed properly or pool is improperly bonded/grounded, electrolytic damage to stainless steel lights/ladders/etc, corrosion of other hardware above the water (bolts on a diving board or slide, etc), ruining concrete/grout/stone with salt damage especially in a freezing climate.
Chlorine does not irritate eyes in pool concentrations. Low pH or chloramine are way, way more irritating. Eye complaints are almost always due to pH, not chlorine, sometimes other contaminants.
Chlorine also does not turn hair green.
Do not be a sucker for superstitions about chlorine. These ideas are promoted by (1) people trying to sell you non-chlorine products and (2) neurotics who find some invisible cause for every discomfort in life.
Another piece of nonsense from the world's foremost usenet contrarian, Richard Kinch.
Chlorine can cause hair to turn green. That's because many, many people have artificially colored hair. Chlorine can absolutely turn your hair green.
Kinch is a nut job, who doesn't know how to think things through.
Salt's not going to kill harmful microrganisms unless maybe if you get up to the concentration of salt in the Dead Sea. I believe the ocean and blood contain ~5% salt and we all know stuff can live there. Chloride ion has no oxidative power to kill bugs.
Awww, cut him some slack, willya? He's not from around here. Chemistry works a little different on his home planet, that's all. Where he comes from, gasoline is safe to drink and carbon monoxide is safe to breathe, but common household borax is a deadly poison. And all petroleum distillates are the same. Electricity works differently on his homeworld, too, where there's no difference between a parallel circuit and a dead short. He just hasn't had enough time to get adjusted to the differences between his home planet and this one. Give him a break.
I've seen plenty of blonde kids (no "artificially colored hair") with green hair from a SWIMMING POOL or SPA, but not from CHLORINE. I have observed this in pools or spas I know to have copper added, with various concentrations of chlorine down to ZERO. Morever, I have observed those same kids in pools I know to have *no* copper but lots of chlorine, and never found any trace of green.
I defy you to produce a chemical reaction of hair protein plus chlorine equals anything green.
When hair turns green from a swimming pool, it is because of a COPPER compound likely added as an algaecide, most commonly copper sulfate. Not chlorine. Typically concentrated in the tips of hair by gravity during drying, the concentration being too slight to otherwise produce a visible effect.
You also see this effect in fingernails. You won't typically see it in dark hair.
No, you're given to foolish statements like that.
On Apr 23, 6:19 pm, "Lawrence M. Seldin, CMC, CPC" wrote:
they knew put
pond of fish.
pools. Is their a
their kids eyes?
snipped-for-privacy@seldin.net
buffalo ny: swimming pools require sanitary water. salt is not a sanitizer. you can use chlorine correctly to sanitize the water overnight with a shock [high level] dose. you could if desired destroy the leftover chlorine the next day with an oxygen shock [see your pool supply store for sodium persulfate or one of its cousins]. this would eliminate the chlorine (and its benefits) from the water. this is usually new information to many: properly maintained swimming pool chlorine levels do not have a (chloramine) smell. a (chloramine) smell reveals improperly maintained INSUFFICIENT levels of chlorine. insufficient chlorine makes chloramines that irritate the eyes. the oxygen shock is the second best shock to chlorine shock. see:
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also see:
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is quoted here for your convenience but see wikipedia for constantly updated info: "Salt Chlorinators: Chlorine may be generated on site, such as in saltwater pools. A New Zealand device the Aquatech IG450 home pool saline chlorinator was introduced to the residential swimming pool industry in 1973 when the first commercially manufactured units for home use were shown at the 1973 Chicago Trade Fair. In the following years, many US, Australian and South African companies duplicated the device, as the process of creating chlorine from saline water - a natural process that occurs in nature when lightning strikes the ocean
- was not Patentable. This process generates chlorine by low-voltage electrolysis of dissolved salt (NaCl) using an electrical electrode incorporated in the pool plumbing, eliminating the requirement of manually dosing the pool daily with powder chlorine. Chlorine generators avoid the need for constant handling of dangerous sanitizing chemicals, and can generate sanitizing power at a lower cost than equivalent chemicals, but they have a significant up-front cost for the apparatus and initial salting of the pool. Annual rainfall contributes to dilution of the pool water, which will require regular "topping up" with several 50Lb (20Kg) bags of salt for the average size pool. Another issue is the production of equal amounts of Sodium Chloride and Sodium Hydroxide (ph = 14, or Base) which causes the pool water pH to rise to levels that render the production of useful chlorine HOCl to levels as low as 15% while the balance of the chlorine produced converts to OCL. OCl still maintains some bacteriacidal properties, but is only effective in concentration of 25,000ppm, so in effect is useless. This dramatic swap occurs in water where the pH is exceeds
8.0. This renders the saline system less effective unless a close watch is kept on pH levels. Some saline units in production (2007) have incorporated an acid demand test, and the pH is maintainted at the correct level by periodic shots of acid into the system. The downside of these units is the need to store large quantities of Hydrochloric Acid on the pool site which must be secured for safety if young children are present. Early salt chlorinators required 2.0ppm dilution, and this content gave the pool water a slightly salty, brackish taste, but not as salty as seawater which is around 20.0ppm. Modern units use far less salinity - around 0.2ppm to 0.4ppm and the salt cannot be detected by taste. Pool water that splashes and evaporates, such as on a pool deck, leaves a salt residue. Being closer to isotonic salinity (0.9%) than fresh water, saltwater pools have an easier feel on the eyes, and a touch typically characterized as "silky", not unlike bath salts. Ionization systems using copper and silver, destroying bacteria and algae, are optional replacements for chlorine systems. In this method low amounts of chlorine are necessary to combat algae. The pool water runs through the ionization cells and is disinfected using a low electrical current. A control unit can decide how much copper and silver to release into the pool, reducing manual maintenance. The cost for such a system is higher than that of a saltwater generator, which already is much more expensive than the standard chlorine disinfection systems. This method of pool water sterilization has been banned in Australia, pending an appeal from the local manufacturers of Ion units. (2005-2006)" also:
Ah, now comes Miller, my Usenet stalker, pouting about my trenchant myth- busting. Persisting in a futile obfuscation of snipped-for-privacy@milmac.com like an aborigine frightened by his own photograph.
My worthless scribbles are somehow worthy of his meticulous inventory, and he takes it as his duty to hork up and spit his top-ten bile-wads into yet another redundant post now and then.
If one can't inform, then one ought to at least entertain. Or keep quiet. Republishing old quarrels is boring. Excitement over such things is an unhealthy sign.
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