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Showing results for tags 'water testing'.
Hi all, first time poster. So I had a hot tub growing up, but never really took part in the maintenance being a kid (although drainage and scrubbing was all on me 👌). That led to me wanting one again as an adult. I don't have a lot of room and I rent, so I found an mspa b141 "4 person" hot tub. (quotes because I can't even figure out how 4 people can actually fit it in! Not just space wise, the water almost overflows with 3!). That is an inflatable Hot tub for those wondering. So like most people, learning how to deal with balancing and water chemistry isn't instant, but through research and trial/error, I got the hang of it. I test my water fairly religiously and everytime before I go in, and manually clean debris + adjust chemistry as needed. The tub is apparently around 700L capacity. The last week or so however, I've been having a weird issue with free chlorine spiking. I use an aquachek digital tester and a standard test kit (adding chemicals to sample and comparing colors) as backup. The readings are accurate. I use chlorine tabs that are stabilized and they have worked perfectly, and the dosage is right. My ph is usually balanced, but tends to push towards the high 6s before I treat. Without adding a different dose or changing anything, I started getting free chlorine readings in the 7-9.8 range! Ph usually between 6.9-7.7, alkalinity around 100-130. I can bring it down by removing the chlorine tab floater, adding water, leaving it open for the sun etc.... But as soon as I put the chlorine back in, it will climb to those high levels within the day. I've shocked it with non chlorine shock which does not change the behaviour, and tried to put a less than recommended dose in. So I'm at a confused point here. This is free chlorine to be clear, and the numbers are apparently correct.
I'm running low on many of my test chemicals and while looking online I noticed they sell 16oz bottles. I'm sure this if for the pool/spa pros that use this stuff a lot on several pools/spas. I'm wondering though if these chemicals have a shelf life and if it would be ok if I bought these to use and to just keep the .75oz. bottles full that came with the kit. The droppers of the small bottles come right off and the bottle could be filled. All together buying the bigger bottles would cost me a little over twice as much as the smaller bottles but I would not have to buy test chemicals for years this way, as long as they don't expire. This forum has been a great asset for me in keeping my hot tub, and hopefully someone here will know the answer to this question. Thanks in advance. Josh
Hi all, I am new to pools and how they work, but I am working on a project to design and build a testing device for measuring water quality and found out that pool owners constantly need to monitor the pool water. What kind of kits are out there right now? I understand there are test strips but many people dislike them, and they are not very accurate. Do you own these test kits? I talked to a pool store and they told me that they offer free testing to their customers, do you take advantage of this or would you rather prefer to do it yourself if there was a simple, quick and reliable way to do it. Have any of you used this phone app from LaMotte to test your pool water? I am just trying to find out how pool testing works, how you do it and what tools you use. Any comments and ideas are greatly appreciated!!