http://www.sms-swimmingpoolforum.co.uk/ Wed, 08 Feb 2012 23:03:59 +0000 MyBB http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=546 Sat, 31 Jul 2010 08:36:48 +0000 http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=546 We are struggling to keep our combined chlorine levels under control. We use Trichlor tablets via an automated doser for our main chlorination which works really well and we generally are able to keep our free chlorine between 1-2ppm. We then shock dose each week using Swimfresh Oxygen Shock, a Potassium Peroxymonosulphate based non chlorine shock which I thought should oxidise off the combined chlorine. The shock works great in all other aspects but we really struggle to keep the combined chlorine down below 1ppm and we are only achieving this through dilution really!
All other levels are fine, PH runs around 7.3-7.4.
Should I switch to a Calcium Hypochlorite shock?
Thanks
Dan]]> We are struggling to keep our combined chlorine levels under control. We use Trichlor tablets via an automated doser for our main chlorination which works really well and we generally are able to keep our free chlorine between 1-2ppm. We then shock dose each week using Swimfresh Oxygen Shock, a Potassium Peroxymonosulphate based non chlorine shock which I thought should oxidise off the combined chlorine. The shock works great in all other aspects but we really struggle to keep the combined chlorine down below 1ppm and we are only achieving this through dilution really!
All other levels are fine, PH runs around 7.3-7.4.
Should I switch to a Calcium Hypochlorite shock?
Thanks
Dan]]> http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=545 Mon, 19 Apr 2010 20:03:41 +0000 NeilS http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=545
With the seasonal swimming pools nearly ready for the summer season, some advice regarding the sampling for both temporary and all year round pools.

According to ISRM/PWTAG/HSE guidance, tests should be performed monthly to monitor the presence of indicator micro-organisms. These can indicate operational problems that could result in infections.
Additionally it is recommended that tests should be performed:

Before a pool is used for the first time:

Before it is put back into use, after having been shut down for repairs:

If there are difficulties with the treatment system:

If contamination has been noted:

To validate changes made to the pool treatment regime, e.g. change in disinfectant, or frequency of addition, or engineering.
More frequent sampling will be necessary if there is a problem, or for particularly heavily loaded pools.

Good luck for the new season, and dont forget your only a question away from help if you need it.

Happy and safe bathing.

Neil]]>
With the seasonal swimming pools nearly ready for the summer season, some advice regarding the sampling for both temporary and all year round pools.

According to ISRM/PWTAG/HSE guidance, tests should be performed monthly to monitor the presence of indicator micro-organisms. These can indicate operational problems that could result in infections.
Additionally it is recommended that tests should be performed:

Before a pool is used for the first time:

Before it is put back into use, after having been shut down for repairs:

If there are difficulties with the treatment system:

If contamination has been noted:

To validate changes made to the pool treatment regime, e.g. change in disinfectant, or frequency of addition, or engineering.
More frequent sampling will be necessary if there is a problem, or for particularly heavily loaded pools.

Good luck for the new season, and dont forget your only a question away from help if you need it.

Happy and safe bathing.

Neil]]> http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=76 Tue, 02 Jun 2009 18:56:24 +0000 http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=76
The children started swimming in our pool 10 days ago and now it's gone cloudy! The chlorine levels are maintained steady at 2-3ppm with a doser and the PH is around 7.3. We use an algaecide and have been putting in the weekly dose and the other readings all look OK. We've been using a 'Sparkle Tablet' and backwashing which clearly is helping but we cannot quite clear the cloudiness.

My question is, should we be using a shock chlorination product at all? Last year I asked Biolab (our supplier) about shock treatment and they just recommended dosing with a high level of stabilised granules but I'm not sure if this is achieving the same thing - we just end up with a massive chlorine level and then have to close the pool and add a de-cholinator.

Any suggestions? The pool is 45m3 and we've been getting anything from 20-60 children a day in over the last 10 days (the last two days have been 60 - you can tell it's hot and sunny!).

Thanks

Dan]]>
The children started swimming in our pool 10 days ago and now it's gone cloudy! The chlorine levels are maintained steady at 2-3ppm with a doser and the PH is around 7.3. We use an algaecide and have been putting in the weekly dose and the other readings all look OK. We've been using a 'Sparkle Tablet' and backwashing which clearly is helping but we cannot quite clear the cloudiness.

My question is, should we be using a shock chlorination product at all? Last year I asked Biolab (our supplier) about shock treatment and they just recommended dosing with a high level of stabilised granules but I'm not sure if this is achieving the same thing - we just end up with a massive chlorine level and then have to close the pool and add a de-cholinator.

Any suggestions? The pool is 45m3 and we've been getting anything from 20-60 children a day in over the last 10 days (the last two days have been 60 - you can tell it's hot and sunny!).

Thanks

Dan]]> http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=51 Wed, 20 May 2009 10:13:58 +0000 Ann Stevens http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=51 http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=9 Sun, 19 Apr 2009 14:54:20 +0000 NeilS http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=9
Algae does not cause disease. It is a plant that turns sunlight and carbon dioxide into food and provides nutrients for bacteria which can then multiply rapidly (and may cause illness). When there is algae present in the pool water, the chlorine is used up rapidly trying to combat its growth. This process has a tendency to raise the pH, thus decreasing the efficiency of the remaining free chlorine.

Unchecked algae growth can turn the swimming pool cloudy or makes the pool water green and results in foul odours and tastes. Black algae, which is more difficult to control than green or blue-green algae, can also stain the swimming pool's walls and floor.

Prevention is better than cure. Adequate levels of free chlorine will prevent algae from growing out of control. When algae growth is noticed, it requires harsh treatment. Usually shock treatment with chlorine or an algaecide is recommended]]>
Algae does not cause disease. It is a plant that turns sunlight and carbon dioxide into food and provides nutrients for bacteria which can then multiply rapidly (and may cause illness). When there is algae present in the pool water, the chlorine is used up rapidly trying to combat its growth. This process has a tendency to raise the pH, thus decreasing the efficiency of the remaining free chlorine.

Unchecked algae growth can turn the swimming pool cloudy or makes the pool water green and results in foul odours and tastes. Black algae, which is more difficult to control than green or blue-green algae, can also stain the swimming pool's walls and floor.

Prevention is better than cure. Adequate levels of free chlorine will prevent algae from growing out of control. When algae growth is noticed, it requires harsh treatment. Usually shock treatment with chlorine or an algaecide is recommended]]> http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=6 Thu, 16 Apr 2009 11:22:24 +0000 Ashley (SMSE) http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=6
These are;

- Sodium Hypochlorite
- Sodium Bisulphate
- Sodium Carbonate
- Bromine
- Trichloro
- Dichloro

Each chemical package contains MSDS data sheets, COSHH assessment and TREM cards.

3 chemical packages will cost £45 and will be provided in an electronic format.

Please post any questions on this thread, or send me an email to; a.passmore@sms-environmental.co.uk.]]>
These are;

- Sodium Hypochlorite
- Sodium Bisulphate
- Sodium Carbonate
- Bromine
- Trichloro
- Dichloro

Each chemical package contains MSDS data sheets, COSHH assessment and TREM cards.

3 chemical packages will cost £45 and will be provided in an electronic format.

Please post any questions on this thread, or send me an email to; a.passmore@sms-environmental.co.uk.]]> http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=4 Thu, 26 Mar 2009 10:13:06 +0000 http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=4
Can I check the current recommended chlorine levels for an outdoor primary school pool.

Also, at what chlorine level should we actually close the pool and stop children swimming whilst we reduce the level? This is particularly for when we shock-dose when levels can rise quite a lot for a period.

Thanks

Dan]]>
Can I check the current recommended chlorine levels for an outdoor primary school pool.

Also, at what chlorine level should we actually close the pool and stop children swimming whilst we reduce the level? This is particularly for when we shock-dose when levels can rise quite a lot for a period.

Thanks

Dan]]> http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=3 Wed, 25 Mar 2009 17:07:14 +0000 Ann Stevens http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=3
I worked out what chemicals I would need for the year, made a shopping list, found the cheapest suppliers on the internet and then went to my REGULAR supplier who was happy to match all the prices I'd found, take off 10% and throw in free carriage. Result - my school was happy with the prices, my supplier had a nice large order and I have all the chemicals I'll need for the coming season!]]>
I worked out what chemicals I would need for the year, made a shopping list, found the cheapest suppliers on the internet and then went to my REGULAR supplier who was happy to match all the prices I'd found, take off 10% and throw in free carriage. Result - my school was happy with the prices, my supplier had a nice large order and I have all the chemicals I'll need for the coming season!]]> http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=2 Wed, 25 Mar 2009 16:17:49 +0000 Ann Stevens http://www.sms-swimmingpoolforum.co.uk/showthread.php?tid=2
I shall look forward to sharing all my woes with others!

At present still trying to get some of the piping mended that the frost damaged. How I love this time of year!]]>
I shall look forward to sharing all my woes with others!

At present still trying to get some of the piping mended that the frost damaged. How I love this time of year!]]>