Adding Water....how Often?

[gcgalt]

I was just curious on how often a tub should need to be topped up. First of all my tub is 260 gallons, I do have an ozinator and I'm on the Eco One system (Don't know if that matters). Two people use it at least three times a day for thirty minutes at a time, I think that is pretty high usage.

Again not sure if this matters or not, I do live in southern Ontario Canada so it is cold here now. It's around the freezing point during the day and dropping below that at night.

I'm adding about an inch or two a week.....I just wanted to know if this was acceptable.

Here is a link to my tub, if there are things that I missed.

[Dennnis]

As long as you do not have a leak , I would say using spa you will lose water from evaperation, also each time you open cover all of the water on the underside of the cover runs off onto the ground, then you have people splashing water. If you got kids with friends they are always getting in and out for one reason another taking lots of water with them each time.

I find if it is just my wife and I then I go like two weeks befor I need to add some water But when the kids are using it I add about an inch or so of water the next day.

[Stevie]

The large majority of the water loss you are experiencing is when exiting the spa. Dennis basically covered all the key points and what you are noticing seems average to me.

Steve

[New NW tub owner]

I was just curious on how often a tub should need to be topped up. First of all my tub is 260 gallons, I do have an ozinator and I'm on the Eco One system (Don't know if that matters). Two people use it at least three times a day for thirty minutes at a time, I think that is pretty high usage.

Again not sure if this matters or not, I do live in southern Ontario Canada so it is cold here now. It's around the freezing point during the day and dropping below that at night.

I'm adding about an inch or two a week.....I just wanted to know if this was acceptable.

Here is a link to my tub, if there are things that I missed.

The water evaporates into air when you have the cover off. When it is cold and dry as you mention, the cold air above the tub contains very little moisture and evaporation from the heated tub water is at a maximum. As soon as the water evaporates, it condenses in the air and forms clouds of 'steam' that you will see when you are soaking. These drift away and disperse leaving you with less water. This happens year round but is especially bad in cold dry weather. You also lose a lot of heat from the tub when this happens which means that your heater has to turn on to make up the loss. Of course you could reduce the loss if you covered your tub with a plastic sheet with a hole for your head to poke through but that would detract 'just a little' from the hot tub experience. My problem is the opposite of yours. There has been so much rain that the air contains a lot of moisture and evaporation loss is much less. With low evaporation loss, the accumulation of rain in the tub when we are in it has become significant and I have had to actually drain excess water out of the tub which is something I never would have expected.

As other people have said, you also lose water when people get out of the tub but it isn't nearly as much as you lose through evaporation unless you have a lot of people passing through your tub. Your loss sounds a little high but if there are no leaks, that is just what is 'normal' for your climate and use patterns. Enjoy the tub.

[Stevie]

As other people have said, you also lose water when people get out of the tub but it isn't nearly as much as you lose through evaporation unless you have a lot of people passing through your tub. Your loss sounds a little high but if there are no leaks, that is just what is 'normal' for your climate and use patterns. Enjoy the tub.

When you consider the percentage of time the cover is off of the spa, I think you'll find that evaporation represents a much smaller amount of water loss than users getting out. There's a few factors there obviously but I disagree with your opinion for the most part.

[Roger]

When you consider the percentage of time the cover is off of the spa, I think you'll find that evaporation represents a much smaller amount of water loss than users getting out. There's a few factors there obviously but I disagree with your opinion for the most part.

One wet suit can carry out alot more water than what can evaporate in 1/2 hour. I agree with Steve, even though I don't want to.....

[Stevie]

One wet suit can carry out alot more water than what can evaporate in 1/2 hour. I agree with Steve, even though I don't want to.....

I change my answer to 99% of water loss is due to evaporation! That better Roger?