Swimming pools blog

5 responses so far ↓

• 1 janis_40 // Oct 19, 2003 at 1:29 pm

  If what you mean by regular granules is Sodium Dichlor then the answer could
  be yes and no. No it raises the chlorine level much higher than your normal
  maintenance chlorine but if you were using the Dichlor for shocking as well
  then the answer is yes it would raise the chlorine level the same. Calcium
  Hypochlorite is unstabilized chlorine and will dissipate very quickly. Is
  this an inground or above ground pool?

• 2 Neva Marjory // Oct 20, 2003 at 2:56 am

  In ground.
  So if I’m starting with unchlorinated water, do I need some sodium
  dichlor granules to get the general Cl level up after shocking? I
  only have slow release tablets but I imagine these are to maintain
  the level once it is where you want it.
  Nick

• 3 janis_40 // Oct 21, 2003 at 4:26 am

  The Dichlor or the Cal-hypo can be used interchangeably in the same respect
  Dichlor and the tabs can be used interchangeably. Tri-chlor tabs are
  stabilized as is Dichlor but Cal-hypo is not. Tabs are used only to maintain
  normal chlorination levels because they do not dissolve fast enough to be
  used as a shock Cal-hypo is only a shock because it is stabilized but because
  Dichlor is fast dissolving and stabilized it can be used for both just by
  increasing the amount you are using. If I were to make a choice between two
  of the three mine would be tabs because they are easy to dispense and the
  Dichlor to shock because it has no calcium dissolves fast and will not make
  the pool cloudy. Now if I really wanted to go crazy I would get a Watermatic
  and automate the pool.

• 4 Neva Marjory // Oct 21, 2003 at 5:53 pm

  My pool continues to be cloudy. It’s mostly blue in colour and if you look at a sample of it, there
  are no visible particles floating around in it. The chlorine levels
  and ph levels are about right.
  I haven’t ruled out the filter yet… but I was wondering: if the
  water was very hard (which it is in our area), would this cause
  cloudyness?
  I added water clarifier yesterday evening on the advice of the pool
  shop and have been running the filter ever since. Should this have
  done it’s job by now?
  Regards
  Nick.

• 5 janis_40 // Oct 22, 2003 at 7:23 pm

  Many reasons the pool may be cloudy
  Old sand in sand filter
  Water hardness (have it checked, also check TDS)
  You stated chlorine levels were ok. By that you mean Free and Total Chlorine?
  Very high alkalinity
  Undissolved particles (almost always a sample will look good unless the pool
  is really really bad)
  Clarifier is good to help your sand filter catch small particles but
  depending on how bad it was and what the condition of your sand filter is it
  may take several days or more to clear up.

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