The water of your new plaster finished pool might turn green when you added chlorine because of iron in your water. You pool generally needs to be filled with water that has been filtered for iron.
Highly likely you have bromine "banked" in your spa water. If the green tint clears up in an hour or so, that's probably the answer.
If you are not, or have never used bromine, check the metal levels at a professional spa supply company.
It depends on your 'danger' level. Any amount of chlorine can be dangerous. It only takes a few drops in a gallon of water to disinfect it (kill every living thing in there) after only a few minutes. Chlorine is classified as a toxin, yet it is put in our drinking water and in pools and used in spas. For a normal sized spa, I would never pour more than a cup of chlorine into the spa. 10 ppm is considered the max. If your spa is green and you are not going to use it then feel free to pour 2 or more cups in it. You're better off draining it at this point. To prevent chlorine breakdown, it is recommended that you add stabilizer and its level will depend on how big your spa is. Chlorine is dangerous because it can damage liners and upset water balance. I suggest that you use 2 ppm of chlorine or more then shock your water for it will prevent the bad odor.
Trichlor is a water sanitiserTrichlor is used in spa because it provides chlorine that disinfects the spa/spa. Trichlor has a content of 89-90% available chlorine. Trichlor is the least expensive substance that can be used to sanitize pools/spas.
The check valve between the spa and the pool is defective.
nada
No nothing to worry about I have trees at the down hill side of pool and they cop heaps of chlorine water and are thriving.
You cannot "contaminate" a chlorine pool or spa with salt or vice versa. Chlorine starts as salt. Chlorine generators use salt to make chlorine. Therefore your "salt" spa is already a chlorine spa, you are just not putting chlorine tablets in it. It is a very common misconception that a salt system is some how different than a chlorine system. There are no "salt generators" and the salt does nothing other than allow a "chlorine generator" to produce chlorine. We get this question almost every day and it's generally because customers are "sold" not "told" about the product they purchased. If you were expecting anything other than purchasing a device that makes chlorine from salt, you will be disappointed. Pool & Spa
Chlorine, bromine, uv, ozone.
A salt water generator, also known as a salt chlorinator, is a device that converts salt into chlorine to sanitize and disinfect pool or spa water. It works by passing an electrical current through salt water, which then produces chlorine gas that dissolves into the water. This eliminates the need for traditional chlorine chemicals to be added to the water on a regular basis.
Just let it disipate.
yes, you could install a check valve on the line that feed the spa with water. it depends if that line has been buried or not how hard the job will be.
If you have a salt water hot tub or pool, you shouldn't need to add any extra chlorine. I am the pool operator at our local YMCA and we have a salt system with a Chloromatic chlorine generating cell. Rarely do we add any extra chlorine, only in cases of decontamination and/or shocking. Bromine does do better than chlorine in higher temps.
When you state or ask Why does your spa test strip turns blue - - - My test strips do not turn blue! Your question should be: Why do test strips turn blue when testing water in a spa? or something similar to that.What portion of the test strip is turning blue? Chlorine reading, pH reading, alkalinity reading, conditioner reading? I'm not sure what your problem is. Are you testing the water right after adding chemicals? What chemicals are you using? How old are your test strips? Have the test strips been left in the sun for any length of time?When did you last change the spa water? Answering these questions and more may make it easier to come to a conclusion on your question.Since there is so little water in a spa -- changing the spa water and cleaning the filters at the same time may alleviate your problem -- rather than trying to adjust the chemistry of the water.