If your cya is already high then di chlor is probably not the best option for you.
Di chlor for vinyl pool liner.
As water becomes warmer however and pool use increases the chlorine demand will rise accordingly.
Sodium di chlor will usually raise the ph level when added to the swimming pool.
Some pool owners will even put it directly in their pool or through the skimmer for the same reason.
It s roughly ph neutral so it will have minimal impact on your pools ph level and staining your pool isn t a concern.
Every liner or pool installation i did i wrote on the service ticket in huge underlined letters use di chlor chlorine and do not use cal hypo.
Di chlor has 55 free and available chlorine to fight algae in your pool.
Di chlor should be added in the evening and swimming can be resumed once the chlorine has returned to normal levels.
It can be used as a shock treatment 1 lb per 10 000 gallons or as a maintenance chlorine 3 oz.
Burst pool shock is dichlor chlorine that is a unique quick dissolving formula that does not require pre mixing and will not cloud pool water bleach pool vinyl liners or harm pool and spa surfaces.
There are many different types of pool shocks available for shocking the pool liquid chlorine calcium hypochlorite stabilized sodium di chlor and also a non chlorine oxidizer called potassium monopersulfate.
Di chlor also contains cyanuric acid cya which acts like sunscreen for your chlorine.
Note that chlorine forms into acid when reacting with water so the net effect is still a slight drop in ph.
To use this type of shock especially in vinyl liner pools to prevent bleaching of the liner you must.
Di chlor is fast dissolving it will not sit on the vinyl and eat away at it.
Sodium dichloro s triazinetrione or di chlor for short is the chlorine you must use for all vinyl pools.
Shocking your pool effectively.