Indoor High use pools tend to be difficult to manage.
What is the best way to manage an indoor high use pool?
What is the best way to manage an indoor high use pool?
Indoor High Use Pools.
- Thread starter JamesW
- Start date
- Jul 21, 2013
- 65,062
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
- Jun 1, 2018
- 16,001
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
The one around here smells of chloramines to high heaven! Kinda part of it though I guess. They do have a very cool fleet of commercial grade dolphins. I have never really inquired about their chemistry. The caretaker has a pretty big Taylor kit that he uses on the regular and so far our skin hasn’t rotted or melted off so I guess things are on the up & up.
- May 23, 2015
- 25,693
- Pool Size
- 16000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Depending on the size of the pool we are talking about, I would absolutely want a UV sterilizer installed in-line. I would be very careful to keep the CYA levels low, at around 30-50ppm and then have a chlorine dosing system to keep the FC as stable and as low as possible. Salt water chlorine generators are great for residential pools but they often aren't large enough to service bigger pools. I would also look at using a clarifier injection system, pre-filtration, to capture as much "bodily shedding" as possible as that will drive the FC demand ... well that, and pee ....
- May 23, 2015
- 25,693
- Pool Size
- 16000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Other methods would be to regulate the bathing-hours of the pool and do regular periodic closures to allow the water to be disinfected. Many larger indoor pools are commercial size and will have spillover gutters all around the pool to capture water and route it to a surge tank. Using a large surge tank can afford the opportunity to also use gaseous ozone to pre-treat the water before filtration and disinfections.
- Jun 1, 2018
- 16,001
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
This is it- its huge! I have always wondered if the guy who manages it frequents TFP.
When it gets full its a little overwhelming. But when there’s no one in there its not too bad. The HVAC system gets quite the workout!
It is supposedly Mississippi’s largest swimming pool. Not sure if that’s still true. It’s quite the facility & kinda feels like our little delta secret. We have had many birthdays here. My kids all have winter birthdays so it’s nice to have something like this.
When it gets full its a little overwhelming. But when there’s no one in there its not too bad. The HVAC system gets quite the workout!
It is supposedly Mississippi’s largest swimming pool. Not sure if that’s still true. It’s quite the facility & kinda feels like our little delta secret. We have had many birthdays here. My kids all have winter birthdays so it’s nice to have something like this.
I am assuming this question relates to an Indoor commercial pool. There are a lot of moving parts to this equation, and it is an actual equation.
I think first is likely to be the pool hall itself, is it tall enough, wide enough and ventilated enough to deal with the various outgassing that must occur.
Whilst on domestic installations it is perhaps not as important, when designing the indoor facility the anticipated bathing load needs to be considered. An idea of the average bathing count and the peak bathing count is required. From the peak bathing count the turnover rate and filter area can be determined mathematically. This is sometimes documented within the relevant documentation for health within the jurisdiction.
Another factor worth considering is use of ultraviolet. Ultraviolet is known to assist in reducing chloramines. However if the turnover rate and filter is undersized UV on its own wont make up for it.
Chlorine is a great sanitiser but not a great oxidiser. Sometimes it may be worth supplementing the chlorine with an oxidiser such as mono persulphate after closing time.
The method I use to see if the filter plant needs work is to consider the FC/CC ratio. Effectively divide the FC into the Total Chlorine and see what the percentage is first test of the morning before any bathers are in the water. If this is less than about 80% then the chances are there are trapped dirt in the system or the filter system is undersized to the bathing load. However, this needs consideration before saying that. For example if the pool had a very heavy load the night before. Or it was perhaps middle of the school term with bathers trucked in from all across the state and this is not usual, then it could be worth monitoring a few days first.
Another area seldom considered is the pool concourse. The pool water itself could be as good as possible and yet the chloramine fumes still high. In a lot of cases this is caused by transfer of dirt onto the concourse from outside and transfer of the pool water onto the concourse. Pool water + dirt = combined chlorines = smell.
These are a few base suggestions to consider in looking at smell reduction in a crowded indoor pool.
I think first is likely to be the pool hall itself, is it tall enough, wide enough and ventilated enough to deal with the various outgassing that must occur.
Whilst on domestic installations it is perhaps not as important, when designing the indoor facility the anticipated bathing load needs to be considered. An idea of the average bathing count and the peak bathing count is required. From the peak bathing count the turnover rate and filter area can be determined mathematically. This is sometimes documented within the relevant documentation for health within the jurisdiction.
Another factor worth considering is use of ultraviolet. Ultraviolet is known to assist in reducing chloramines. However if the turnover rate and filter is undersized UV on its own wont make up for it.
Chlorine is a great sanitiser but not a great oxidiser. Sometimes it may be worth supplementing the chlorine with an oxidiser such as mono persulphate after closing time.
The method I use to see if the filter plant needs work is to consider the FC/CC ratio. Effectively divide the FC into the Total Chlorine and see what the percentage is first test of the morning before any bathers are in the water. If this is less than about 80% then the chances are there are trapped dirt in the system or the filter system is undersized to the bathing load. However, this needs consideration before saying that. For example if the pool had a very heavy load the night before. Or it was perhaps middle of the school term with bathers trucked in from all across the state and this is not usual, then it could be worth monitoring a few days first.
Another area seldom considered is the pool concourse. The pool water itself could be as good as possible and yet the chloramine fumes still high. In a lot of cases this is caused by transfer of dirt onto the concourse from outside and transfer of the pool water onto the concourse. Pool water + dirt = combined chlorines = smell.
These are a few base suggestions to consider in looking at smell reduction in a crowded indoor pool.
I did not see this one coming but it makes total sense. At our kid party / swimming lessons place there are 20+ parents walking in to get their kids every 30 mins and maybe more parents for parties. The apron around the pool was wet at all times, and even puddled in places.
The kids contributed their fair share of the smells, I'm sure, but evidentally I helped a little too. Lol.
- Jun 1, 2018
- 16,001
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
When we’ve been its always been very clear - that part is supposed to look like a beach walk in so it’s beige plaster. The yellowish floor & lighting isn’t doing it any photo favors lol
I am not sure when it was built- maybe 20 years ago?
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