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Kreepy Krauly Auto Pool Cleaner Issues

I recently went out to assist a client who was having problems with his kreepy crawly pool cleaner, the issue was poor suction and the result was the cleaner would not operate. poor suction can be a result of a number of different causes such as:

  • An air leak on the suction side of the pump. (The inlet side of the pump is often referred to as the suction side as this is where suction occurs). The air leak can be anything from a poor seal on the pump lid, or a poor seal on the barrel union (The part that screws onto the pump inlet), or a poor seal on the vacuum plate at the skimmer box.
  • Poor suction can also result from a blockage or a restriction on the inlet side, for example a small toy like a ball being sucked up by the cleaner or the skimmer box basket being choc a block full of leaves and also the pump basket being full of leaves. Having said that i should also mention that poor suction can be the result of a restriction on the pressure side of the pump.( The pump outlet side is often referred to as the pressure side as this is where you have pressure build up when the pump is operating.
  • Restrictions on the pressure side is commonly caused by a clogged up filter, in the case of cartridge filters it might be that the filter has not been taken out and cleaned for a while or maybe it is so old that the element has perished and thus will not let water flow through quickly enough.

In the case of sand filters it could be that the filter has not been back washed, or maybe the sand in the filter is way overdue for a sand change.
The normal life of filter media be it sand or zelbrite, or glass is approximately three years. What happens is that after three years the media starts to harden up, I have forgotten the number of times I have gone out to do a sand change for a client and have found the sand so hard it cannot be pumped out and has to be taken out by hand.
A restricted sand filter is like a vacuum cleaner with an over full bag, until you empty or change the bag in a vacuum cleaner you will have poor suction.

Getting back to this client of mine, when I went out there I found that none of the above was causing his problem of poor suction. What I did find was that when i checked the suction at the bottom of the skimmer box it was as good as can be, however when I checked the suction with the vac plate on there was hardly any suction there, which led me to believe it was either a faulty seal on the vac plate or even a warped vac plate.
I returned the following day with a new vac plate confident that I had solved the problem but alack and alas when i fitted the new vac plate in we ended up with the same result, very little or no suction.

    So what was causing this problem??? after some more investigation I found the answer.
  • A skimmer box usually has 2 or more suction ports (Places in the side or bottom of the skimmer box where the PVC pressure pipe is glued into)
  • During construction of the pool when the skimmer box is fitted, the plumbing pipes are connected to the required ports and the unused ports are blocked off.
  • What had happened in this case was one of the plugs that was blocking off the unused suction port of the skimmer box had come undone.
  • This in turn caused the the suction to occur through the side port when the vac plate was fitted on and of course when the vac plate was removed the suction would occur in the bottom port of the skimmer box.
  • When I refitted the plug the suction with the vac plate on returned to normal and the cleaner was operating as it was before.
  • If you look at my little drawing below it is easy to understand why there was poor suction.
  • The pump was sucking water from the main suction line at the bottom of the skimmer box and because the side port was unblocked it would suck water in from the side port rather then through the vacuum plate.
Swimming pool skimmer box flow

If you are having problems with suction, give me a call on 03 90164636 and I can arrange a time to come out and see you

Salt Chlorinator Fault Issues Experience

Link to Salt Chlorinator Repair Services:.

Hello Again
This is Michael the Justpools Service TechnicianI just wanted to share with you one of my experiences with salt water chlorinators.

I had occasion to go out to a client's residence to find out why his chlorinator was not working. The service call had been requested by the client as his pool water tests kept showing low chlorine levels, however the client informed me that the unit appeared to be operating normally with plenty of gas coming from the cell during operation.

I arrived at the property and had a look to see what was going on. The first thing i did was a water test to check for ph level and chlorine level, the results of the test showed that the ph level was on the high side and the amount of free chlorine was very low. My next step was to check the operation of the chlorinator and with the unit in operation I found that chlorinator was working normally.

Justpools Salt Water Chlorination Repairs

After some more investigation I found the cause of the problem, it turned out that the client had the incorrect run times set up in the timer on the chlorinator. The run time set on the chlorinator time clock was from 10.am to 6pm daily. That's an operating cycle of 8 hrs per day. Now the chlorinator was set on 100% output and was of a large capacity (35grams per hour) and with a run time like that for a 50,000 litre pool you would think that there would be plenty of chlorine in the pool, so how come very little or no chlorine ???.

To be able to answer this I need to explain a little bit about how the system works. Now when you see a salt water chlorinator in operation and look at the electrode cell in the housing you will see a cloud of gas coming of the cell. This is caused by the reaction of the current between the plates of the cell and the salt (sodium chloride) in the water. I won't go further into this as the chemical equations are quite complex, but in simple terms the sodium chloride molecule is broken down in to sodium and chlorine. The chlorine does its job of sanitizing the water and at a later stage in the reaction the chemicals recombine to form sodium chloride or salt. The reason for that explanation is to try to make you understand that the chlorine coming off the electrode cell is of a very dilute nature and takes quite a while to build up to a concentrated level.

Now having said that you need to know that the worst enemy of chlorine is ultraviolet radiation which naturally comes from the sunlight. So in this case what was happening was that there was a dilute amount of chlorine coming off the cell and going into the pool, which was then pretty much being broken down by the action of the sunlight with the end result of a low chlorine level in the pool water at the end of the run. The remedy to this was to do a split run, What i did was to set a morning run out of the strong sunlight hrs which was from 6 am to 9.30am and then an evening after sun run which was from 6pm to 10pm. What happens in that setup is lets say at the start of the evening run the chlorine level is low, by the end of the evening run the chlorine level will have built up and it will sit there overnight sanitizing the water and then the early morning run kicks in and boosts the chlorine level high which gives it enough to last through to the evening run. By using this method you can be sure of having chlorine in the water.

However this was not the only issue. the other issue was the high level of ph in the water. When chlorine is added to water, one result is that the ph of the water is increased through the reaction of the chlorine and the water. A ph level that is above or below 7.5 has two side effects, one of them is that eye irritation can occur and the other is that chlorine becomes less effective as a sanitizer the more the ph is out from the normal range.

Going back to the client, once i had added some acid to the water to bring the ph level to where it should be and added some liquid chlorine to the pool water to bring the amount of free chlorine to the right level and reset the time clock on the chlorinator, within a few days his pool was back to normal. I advised the client to give a daily dose of acid to the pool rather than a weekly dose to help keep the ph in balance.

Of course the better way to do this is by installing a chlorinator with a built in ph monitoring and acid dispensing system. Well that's all for now till next time!
Regards
MichaelJustpools Service Technician

Link to Salt Chlorinator Repair Services: http://www.epools.com.au/repairs-call-1300-658-313-c-739_1092/.

Pool Cleaning Made Simple with the Zodiac Barracuda G2

Zodiac Barracuda G2 Automatic Pool Cleaner Strong and durable, the Zodiac Barracuda G2 is a practical and efficient suction cleaner that will keep the pool clean and free of built up dirt and debris. This reliable pool cleaner is easy to install and requires low maintenance. And most importantly, the Zodiac Barracuda G2 is affordable and time saving.

The Zodiac Barracuda G2 possesses a hydrodynamic shape that directs water flow and helps give it great suction. Along with its strong suction the Zodiac Barracuda G2 has fantastic manoeuvrability, easily getting up and down the side areas of the pool, randomly cleaning from end to end.

Zodiac Baracuda G2 Cleaner

The Zodiac Barracuda G2 contains a cleverly designed cassette system that helps it move and clean at a high level of performance. The cassette swivels freely which allows the Zodiac Barracuda G2 its great manouevrability. This cassette is quick and simple to insert having a ‘twist and release’ system for hassle free maintenance. Its disc structure gives the Zodiac Barracuda G2 very good adhesion to the pool and it contains pliable inserts that scrubs the pool’s surface.

Suction cleaners are the most common type of pool cleaner and the Zodiac Barracuda G2 is the logical choice when guaranteed performance is sought after. Its proven design lets the Zodiac Barracuda G2 move about its business quietly and effectively, all the while collecting everything from dirt, bugs, foliage and even small stones.

It is worth noting that when the time comes for replacement parts, many generic, they are readily available and not demanding on the budget. And Containing no nuts or bolts the Zodiac Barracuda G2 is a non-corrodible unit and it is easily connected to the skimmer box for use.

Sit back and relax while the Zodiac Barracuda G2 does the hard work gathering with its powerful suction all the unwanted materials that find their way into the swimming pool. It certainly is a simple to use, strong working suction pool cleaner.