Continue shopping or Proceed to checkout
Removes unsightly organic stains from fibreglass, vinyl, concrete, pebblecrete and most pool & spa surfaces including discolouration from most minerals including Iron, Copper, Manganese & Calcium.
Active Constituents: 660g/Kg Citric Acid. 340g/Kg Chelating Agent.
Staining commonly occurs on pool and spa surfaces over time as dissolved minerals precipitate out of solution in the presence of high pH levels or reactions with excess chlorine oxidiser. Organic matter such as dead blackspot algae, leaves and debris can also mark pool surfaces and be hardened by alkaline minerals such as calcium. Our DIY STAIN REMOVAL TREATMENT with our latest product SERIOUSTAIN (TM) REMOVER, dissolves all mineral deposits with a blend of organic citric acid and a powerful chelating agent to remove and complex (lock-up) freely dissolved minerals into a soluble form to prevent re-occurrence of staining after treatment.
STEP 1 Stop swimming and adjust the pH to neutral 7.0 then backwash or clean the pool filter and then turn the pool pump off. Remove all plastic parts including pool covers, hoses, automatic pool cleaners, etc. Allow the free chlorine to drop to zero before treatment for best results.
STEP 2 For recent stains in swimming pools, add 250 g of SERIOUSTAIN (TM) REMOVER per 10,000 litres of water dissolved in 10 litres of water and pour around edges. In spas add 100g per 2,000 litres. Brush the walls and floor and after 24 hours if the stains have faded restore the pH to 7.2 with a similar quantity of sodium bicarbonate. If staining persists after 24 hours go to step three before restoring the pH.
STEP 3 For severe or old stains in swimming pools, add 500 g of SERIOUSTAIN (TM) REMOVERper 10,000 litres of water dissolved in 10 litres of water and pour around edges. Additional hydrochloric acid may be added to further lower the pH and shift more stubborn alkaline deposits (refer Precautions below). Vinyl lined pools add 500mls per 10,000 litres, fibreglass pools add 1000 ml per 10,000 litres, concrete pools add 2000 ml per 10,000 litres of pool water. For painted concrete pools in good condition, use the dose as for fibreglass.
STEP 4 Once all stains have faded, turn on pump and filter and add 2 Kg doses of sodium bicarbonate morning and night, testing the pH between applications until the pH is restored to the ideal 7.2. As a guide, around 1 Kg of sodium bicarbonate is required for every 1 Kg of SERIOUSTAIN (TM) REMOVERor hydrochloric acid used in the treatment.
STEP 5 After the above treatment for mineral staining, it is good practice to dump a third of the pool water and replace with fresh fill water, which dilutes the mineral loading of the pool water by one third. Always add one bottle of POOL STAIN INHIBITOR to chemically complex remaining minerals in solution and prevent stains returning.
STEP 6 Restore the free chlorine level to 1.5 ppm and maintain the pH in the correct 7.2 to 7.6 range by testing the water weekly which is vital to ensuring the effectiveness of all pool chemicals, especially chlorine as a sanitiser. We recommend the use of liquid chlorine or a salt water chlorinator to sanitise pool water as calcium based chlorine builds excess hardness and causes cloudy water. Use only sodium bicarbonate to increase pH in swimming pools and spas as sodium carbonate (soda ash) is too alkaline and does not buffer pH. Add our POOL STAIN INHIBITOR once a season to neutralise future mineral staining before it occurs.
Click to get Mobile App info...
Copyright 2014 Direct Pool Supplies. ABN: 77 069 817
Contact Us Go to top
Hi Direct Pool Supplies,
I want to thank you for the rapid response and postage on the recent Chlorinator item which I purchased from you.
I am extremely pleased with your service and promptness.
January 17th 2014
Murrumba Downs, QLD
Thank you for the excellent service however I received my Poolrite SQI500 pump on Friday but on opening the parcel on Saturday I noticed 2 pieces of black plastic visible inside the strainer box.
On further investigation I found that the o ring seal area on the inlet pipe was broken rendering the pump unusable....
Hi Stephen, Very sorry for the damage. Can you box the pump back up and put our name & address clearly on the box & we will arrange a pick up...
We received the new pump promptly as promised and I fitted it on the weekend. It is working well.
Thankyou again for your excellent service and I will be sure to recommend your site to my friends
January 5th 2014
Woy Woy, NSW
Thank you for the fantastic service. Pool Volleyball has just arrived. That’s only 24 hours!!!! Terrific!!!
December 18th 2013
Thank you so much for your assistance.
We placed our order today for a pool cover and I just wanted to let you know that your prices even including freight were the most competitive in my whole local area...
so thank you for not only your wonderful assistance last week but also supplying your customers with great prices.
Best wishes for the upcoming Christmas season
December 15th 2013
Ordered and paid for Friday – delivered on SUNDAY less than 48 hours later.
Prompt, efficient and helpful
Thank you so much for such great service
December 8th 2013
Auckland, New Zealand
I received my salty cell this morning – no problems
I must compliment your crew and DHL on such speedy processing and delivery – well done.
December 3rd 2013
W.T. (Bill) Edwards OAM,
We have just added you to our favourite list.
Purchased Solar Controller MS3D Monday installed in QLD today Wednesday.
Just the best service and I thank you for the fast & efficient service. Gold medal to all involved. You should be running the Country.
We know where we will be making all our purchases from now on.
October 2nd 2013
Thankyou for your prompt despatch! When you need a pool pump, you need it asap and it couldn't have arrived any sooner!
Once again, great service!
September 19th 2013
St Marys, NSW
Just wanted to thank you for the excellent customer service in arranging the replacement skimmer box which I requested on Monday. We received a call from Sterns on Tuesday and the part arrived at our address today (Wednesday).
Happy for this message to appear on website
September 18th 2013
Crescent Head, NSW
Have just noticed how quiet my new davey pump Silensor is. Ordered from your company last Monday afternoon and delivered to my post office on Wednesday and installed on Thursday - and now really noticing how quiet it is.
Once again good advice,great prompt hassle free service from your staff and excellent delivery time from Australia post ( have had products sent via well known couriers who guarantee or rather say 24 hr or even overnight delivery which can end up being 7 days or not at all and recently damaged.) Having previously purchased a replacement chlorination from your company and totally satisfied I just wanted to say thanks for the service and advise that I will recommend you to anyone.
August 26th 2013
John R Halsall,
Today I received my filter cartridge and I would like just to say thank you for your prompt service. I was told here in Qld that this model was obsolete but thanks to your firm and help from staff I do not now require a complete filter as told up here
July 5th 2013
Wow What an amazing web site to get spares for the pool pumps etc. Thanks great experience.
July 4th 2013
Thank's a lot for the products and the very fast delivery ! All was OK as always !
July 2nd 2013
Your postpack was arrived to my brother in Hungary. The instrument is perfect, already installed and it is working very well. Thank you for your perfect job and cooperation.
July 2nd 2013
Just a short note to say thanks for your assistance supplying my Minder salt cell which I received early in the week.
I waited until I had the part fitted to get back to with this note but yesterday I had the time to redo the plumbing as the salt Cell connectors were of a different model than I had installed on my water system however I got it all sorted eventually and the unit is working well.
Thanks again and I will surely be returning to your company if I need any other pool parts which I have difficulty with here in Thailand.
May 10th 2013
I received the items this afternoon so thanks for following this up for me.
One mistake though, in the order I had ordered the Poppit Quick Fix 1Kg, however I was only sent the smaller 475g.
There is no point in sending this one back to exchange for the 1kg so can this be fixed up some other way...
Thanks, this arrived today. I wasn't expecting a full 1kg (another half kg would have been fine) so thank you for sorting this out and going the extra effort.
I will definitely look at purchasing from you again
April 26th 2013
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