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Emptying a Swimming Pool
Every swimming pool built or manufactured must, at one time or another, be emptied for repair or resurfacing. There is no such thing as a pool that will never need to be drained, regardless of what you may have been led to believe.
Draining a pool can cause serious damage to its structure.
If your concrete or gunite pool has hydrostatic relief valves (usually located near the bottom of the steep slope), remove them as soon as you can get to them while emptying the pool. If you have an operating bottom drain, remove the cover and see if it has a hydrostatic relief valve (almost all do), unscrew and remove the valve as soon as the pool is drained.
The last 30cm or so of water probably won't drain out, so be ready with a sump pump to immediately place at the drain to remove the remaining water. This is extremely important, and must be done quickly, so the bottom drain can be accessed for removal of the cover.
After opening the valve, place a pipe into the valve (about 3’ to 6’ long) and put a hose through the pipe, Bring the hose up over the top of the coping and attach a pump to draw the water from under the pool. This is just ground water, so there is no chemical content to be concerned about. Point the water flow to a drainage area away from the pool
Type of damage that can occur:
After draining, the liner can shrink which may then tear when refilling. The older the liner, the less it will stretch when refilling. Generally if the water has been out of an above ground pool for any length of time, a new liner will be required.
Because fibreglass pools weigh the least, as compared to concrete or gunite, the danger of lifting is greater. Never empty a fibreglass pool during the rainy season unless the pool has a built-in system for relieving the underground water pressure (which most do). If you have standing ground water hours after it rains anytime during the year, there is a strong possibility that any pool (gunite or fibreglass) will lift.
A fibreglass pool is the most dangerous to drain and should only be done by a professional. Older pools may not have been built structurally to hold back the weight of the dirt against it when the pool is drained. This can cause the walls to collapse. These pools were backfilled with dirt as the water level came up, equalizing the pressure as it fills. A fibreglass pool must be braced if emptied.
In ground Concrete Pools
Here, you are dealing with the same groundwater problems as for a fibreglass pool. Most in- ground concrete pools are built structurally to withstand the weight of the dirt against them when drained. However, if the ground water is high enough, it can push the entire pool out of the ground. The pool shell acts like a ship and floats up in the ground water.
Bottom Line: - Do not attempt this if you are unfamiliar with the process and the risks.
Extra Tip When telling pool owners about the above concerns, we are often asked about the hydrostatic relief valve and why this wouldn't protect the pool. A hydrostatic relief valve only allows as much water to flow through as the force of gravity permits. You are draining the pool much faster than water can flow through the hydrostatic valve. It is designed to equalize the water level in the pool to the ground water to compensate for a small leak or water loss.
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Scottsdale, Arizona. USA
You guys are AWESOME!! I placed my order with you on Sunday March 31 and it arrived in Arizona, United States on April 4th! That is faster than I could have received the shipment if I would have ordered in my same state! The new salt cell was packaged perfectly and was exactly what I ordered!
Thank you so much
April 5th 2013
Just wanted to say 'thank you' for the great service fron DPS. Aust Post delivered the cell 20 mins ago and I am about to instal it. The delivery man even beat the tracking email!!
I find that quite amazing for it to get from Cardiff to Brisbane in less than 24 hrs when an Overnignt Express envelope to my office in Sydney CBD can take up to 3 days!!
March 26th 2013
Got back finally on Friday night and just wanted to thank you and your team for your help and excellent service.
I was greeted at the hotel by ‘We have a parcel for you Mr Cave’ before I had even signed in!
Just waiting for the temperature here to rise a bit to get the pool back working…enjoy your winter!
March 11th 2013
I just spoke with a man about the Waterco Hydrostorm 125, I need to order one of these ASAP as my pool has started turning into an algae-orgy....
Thanks very much mate my wife just received the pump….next day delivery is absolutely fantastic!! Thanks again for the wonderful service.
You have my permission to include this as a testimony as well if you wish
February 21th 2013
Just a short note to say thank you for sending us the grab rail. My husband fitted it for me. I am pleased to tell you that I would reccommend your Company to anyone as you were very quick with the dispatching of my purchase. It arrived in WA in a week,
I am very happy with my purchase, and have enclosed an attachment of the finished product..
February 13th 2013
I would just like to thank you for the efficient service. I received my Polaris in an incredibly fast time.
I was very impressed and will definately be using you again for all my pool equipment/supplies.
February 4th 2013
Ocean Shores, NSW
Many thanks for that. Great service.
I received the new chlorinator yesterday, up and running beautifully.
December 21st 2012
Trinity Park, Qld
Thank you so much for our Zodiac V3 Robotic Pool Cleaner.
It arrived really quickly and although I was hesitant to spend so much money on a pool cleaner I couldn’t be happier with the product, I have a lot of trees around my pool and the filter/vacuum never seems to get enough suction to do a good job. My pool is the cleanest it’s ever been and so little effort from me!
I would highly recommend this product to anyone!
October 21st 2012
I am not usually a "shop on line" person, but heard your advertising on 2NUR FM and decided to look at your web site.
The whole experience was so simple and easy, I would recommend Direct Pool Supplies to everyone.
I ordered a Daisy Pool Cover on Thursday afternoon, and it arrived by Courier on Tuesday Morning.
I am certainly a very happy customer. Thank you
October 19th, 2012
Old Bar NSW
Hi Direct Pool Supplies, I ordered a Zodiac Pool Chlorinator from you on Sunday night.
The item has arrived today (the next Tuesday). Thankyou for your superior service, great product range and exceptional delivery time, and not to mention great price and free delivery.
I will be spreading the word to my neighbours and friends. Thankyou again.
September 9th, 2012
The Hurlcon CTX-400 arrived today. 2 working days. I'm impressed.
I just wanted to say thank you for your impeccable service, quick response to my queries and of course fantastic price. Keep up the great work. I'll use you again and have no hesitation at all to recommend you to others. Thanks again
September 3rd, 2012
Thank you for the perfect service. I order last Sunday and received the delivery on the other side of the world on Friday! Even order within the country took longer!
July 21th, 2012
My order was delivered safe and sound yesterday to the UK in 6 days. Great service and thank you very much I will use you again
July 17th, 2012
Hurlcon CTX 400 slotted in and is working fine - many thanks for your excellent support. I have a saved a lot of money sourcing online - you can quote me
July 7th, 2012
Dr. Guido Lozada
Thank you for shipping the package to Hawaii for my solar heating. I received it today. I am sure I am not the only one who might need a repair similar to mine.
You could or should market your Repair Parts, through a "Craig's list" or other practical venue
June 16th, 2012
Nicole da Silva
As discussed with you, I am attaching the requested photos of the pool timer that arrived broken in 2 places.
As we are unable to use this timer I would very much appreciate it if you could please replace it at your earliest convenience...
Hi. Just letting you know that we have received the new timer. Thank you very much
Thank you so much for the speedy response to my return of the pool cleaner.
I am impressed with the speedy service for both parts of this transaction and manner in which your company has dealt with this return.
I will gladly keep you in mind for any future purchases
Peter Warner in UK
Hi Mark in Australia,
Our pool products [INV-42985] arrived today via DHL after a mere 5 days. Thank you for your excellent service and range of supplies
Fantastic service my thanks,
ordered online Tuesday night, and deliverd in Sydney Thursday morning.
Jules & Pete
Just thought you would like to know that the timer got here today…..safe n sound…..
Thank you for your efforts……You’ve done well!!!!
I appreciate your help , and your customer service it is excellent.!
Goodmorning(here at least...) i recived the pack, everything is ok,-thank you.
your service was proffesional and fast, so whenever i or my friends will need somthing, i will defently contact you again,
thanks again, and best regards from tuscany, italy.
03 aprile 2012
This is fantastic, the steps arrived this morning.
Impressed with the service and speed will definitely be using your company again and recommending it to others.
The order arrived yesterday, oustanding service on your companies behalf.
I will recommend you guys to anyone needing pool equipment.
Thanks for your patience and help.
Receiving the P100 Chlorinator Cell on Valentine's day beats the chocolates and flowers my husband bought me this morning, but don't tell him that! The biggest hugest thankyou for your prompt correspondence and to all the automatic tracking notifications from Australia Post. It was such an easy pleasant transaction. Cell is already installed (by me) and working like a dream. I will certainly recommend you to friends. As mentioned earlier we had purchased online from another supplier 3 weeks ago and each time the promises were broken. I suppose that's what you get with a cheap website, cheap service! You guys are like diamonds, rich and rare. Again, many thanks and I will certainly visit your website again.
Just want to thank you for such an amazing job you have done in sending the pool items to us -----!! I have never received something so quickly.
Anil & Karen Gonsalves
I must admit, your customer service is exceptional..
I have already spoken to a few people about ordering from you guys. Cheers