Search results

This would cause corrosion from inside the flue pipe which is why I described that as a possibility but not likely given that it looks like the corrosion he is seeing seems to be outside all piping. Would the process you describe have corrosion on the outside or only on the inside? You are...

Welcome to TFP! :wave: Since the rust is on the outside of the pipe (see if you can look inside the pipe to see if the rusting is less, the same, or more), I suspect it is caused by the external environment. One possible cause is chemicals are stored in the same room as the heater, such...

I've got 466 square feet of solar pool water heating panel area, but not all are in the sun all the time (there's a tree that blocks two of them part of the year). If you want to have very warm water without needing any gas heat, then you'll definitely need a solar cover. We have an automatic...

Welcome to TFP! :wave: According to this government website: However, when I look at the specifications and documents for the Jandy LXi heaters, I see nothing about efficiency measurements. Heater Review Sites seem to only mention specific efficiencies when they are listed explicitly by the...

The FC level is not relevant. What is relevant for metal corrosion is mostly low pH but for chlorine level it's the active chlorine level, so closer to the FC/CYA ratio, that matters. Their 5 ppm FC also handles pools with no CYA so your active chlorine level is so much lower than that (over...

A chlorine test kit would show the bromine that is produced when you add an oxidizer such as chlorine or non-chlorine shock (MPS). The units of bromine are 2.25 times higher than that of chorine so 1 ppm FC is 2.25 ppm Total Bromine and the test does not distinguish between them. You can...

These are not efficient collectors in areas with full sunlight. As noted in the link, they average around 60% in efficiency. Evacuated tube collectors are more commonly used for domestic hot water heating because they are more efficient than other collectors when the temperature differences...

See Solar Panel Technology Comparisons. Basically since you are cost sensitive, the black flat mat plastic tube panels are what you would need to get, BUT they will not heat the pool during the winter because of less sunlight and especially because of the colder air temperatures especially if...

See this post for some questions you could ask whomever advised you about the UV system.

In the Champion Expanding Encyclopedia of Mortuary Practices article "Bleach in Embalming Rooms: Overrated and Overused Part 1" written by a chemist at The Champion Company: Note, however, that formaldehyde in the Magic Eraser is not a separate chemical but one component of a polymer so will...

I understood that the water would drain by pulling water up and over, but I didn't realize the VRV trigger pressure was so low which makes my height concern pretty irrelevant (1/15 * 32' = 2' so not very high).

I can definitely answer the question "will it help". Yes it will. Having the vacuum relief valve lower will let you run at a lower flow rate without it opening. As for whether it's safe, I'd let Mark comment on that as he has. As for whether your panels will be able to drain, that's a new...

The reason the panel manufacturers don't want you to lower the relief valve is that it is there not only to allow for draining of the panels but also to prevent negative pressure in the panels. If your flow rate isn't high enough where the restrictions of piping and inlets into the pool build...

As Corleone and chiefwej notes, a saltwater chlorine generator reduces maintenance since that appears to be your primary goal. Neither UV nor ozone will reduce maintenance. As I wrote, if you wanted to reduce the amount and level of chlorine perhaps by half then you use an algaecide or...

See this post I recently wrote on another thread about UV. Read the linked thread about someone with a similar situation but using ozone. Your friend's pool was using low chlorine and not getting algae not because of the UV system, but because their pool was likely poor in algae nutrients. We...

Welcome to TFP! :wave: With floc'ing, you have to turn the pump off and let everything settle to the bottom of the pool. Then set vacuum to waste and carefully remove everything that has settled to the bottom. You may need to add water to the pool first since vacuum-to-waste will remove water...

If by "violent reaction" you mean it dissolved with lots of bubbles (gas) then it is most likely to be calcium carbonate. If you were to instead add a small amount of acid to the powder, it would fizz or bubble, again because this converts the carbonate into carbon dioxide gas. Your 3900 ppm...

Wow, 6K to replace the cover? Fortunately, Pool Covers, Inc. who installed my cover has a pro-rated cover warrantee which is full through 3 years so when my cover degrades over 3-4 years I get it replaced for labor-only at around $800. (Pool Cover Specialists likewise has a 7-year pro-rated...

Of my 12 panels, 2 are in shade a lot due to a large Sycamore tree. In the early spring and later in the fall the leaves are off the tree so these 2 panels help a bit during that part of the season. So 10 panels with my 16,000 gallon pool works great, but we heat the pool warm to 88ºF. Unless...

See this link that talks about the fading of medium blue dyes in vinyl liners, but the same is true for dyes used in plaster. See also the article Until the Colors Fade. It sounds like they used an organic dye when it would have been better for them to use an inorganic dye/chemical.

Multiple people DID say that clear covers were the best for heating. If you want maximum heating of the pool then you do want a clear well-insulated (such as bubble-type) cover because this lets most of the sunlight into the pool to heat it deeply (i.e. not just at the surface). The downside...

You don't have to have bacteria in the pool water to get swimmer's ear (though swimming in water with elevated bacteria levels can make it more likely to occur). You've got bacteria all over your body, including inside your ear, already, and your kids will subsequently be touching soil and...

That's better 266,000 BTU/hr. 20,000 gallons is around 167,000 pounds of water so that would be 266,000/167,000 = 1.6ºF per hour though it will be less than that since the heater is not 100% efficient. The heater usage would be 2.66 Therms per hour so you can see you don't have to run it very...

123 Therms per month (I assume you are talking about one month) is around 4 per day and that is not high if you are heating your pool even a little bit. When we heat our 16,000 gallon pool with gas, it uses way more than that. During the winter, just the pool alone is around 12 Therms/day (360...

As for how long covers last, mine last only 3-4 years, but supposedly the latest one is supposed to last a little longer. It mostly gets small holes at creases near the edges after the 3rd year. We use the pool nearly every day so the cover gets opened/closed that often. So we may have more...

I think your pool size is off. Even PoolMath with 24' wide (diameter) and 45/12 = 3.75' deep gives 12700 gallons (I used 12690 in my calculation).

3.14159 * (24/2)^2 * (45/12) cubic feet in gallons is 12690 and in pounds of water (8.33 pounds per gallon) is 106,000 pounds. The Hayward H210 is 210,000 BTU/hr input and I don't know it's efficiency but let's say it's 85% for 178,500 BTU/hr output. It takes 106,000/178,500 = 0.59 hours or 36...

Though I use a different manufacturer (Pool Covers, Inc.), we used to have tan and it didn't show much dirt so that was good. However, it reflects more light so there is virtually no heating of the pool since the cover is opaque. We switched to Royal Blue and while it shows dirt a little more...

Low pH can cause wrinkles in a liner, but it doesn't look like that is an area where you added acid (there's no return there) and usually pooling of acid would occur more towards the bottom of the pool.