Search results

My chlorine consumption does increase during the hottest days of summer but indeed 2 to 4 is the average when I stay on top of CYA and pH depending on temp and cloud coverage. I do not cover the pool but have a large tree shading it part of the afternoon. I did not expect so many of you...

JamesW: how far along are you with the pool you started :D I got the measurement in: 3000 ppm. I liked that there is no second guessing as for the CYA test, and of course the colors are so lovely (pale yellow, pale orange) but at the end of the day, I guess 3000 ppm is nothing to worry about...

I'll be back :cool: (in about a week or so)

Will do. It'll be a few days until I procure the kit. Thank you!

I found the instructions but they don't provide recommendations based on the results (other than how to increase) the way the full testing kit does...

Thank you both! Would you know what ppm level warrants dilution (assuming that is the method of choice to lower salt level)? Perhaps the test kit comes with a useful little manual addressing this question?

Hi everyone, I've been babysitting the 14,000-gallon pool in my signature for around 7 years with no water change or dilution except from evaporation and overflowing when it rains a lot. I have no chlorine generator. I only use bottled bleach for sanitation. It has worked marvelously well! The...

Of course writing "all they have to do" does not account for the formation of ice on the pool surface. While letting ice form didn't seem to result in cracked pool shells, it definitely had the potential of damaging fine tiling work. Short of backup power, I don't think there is a simple way to...

Right. In my use case, having the starting current provided by the vendors would also help properly size backup power. In my corner of the woods, the February Texas winter event was downright scary and a lot of folks are wondering what to do when it inevitably repeats. Not many pool owners seem...

:D At least "they" seem to be paying attention to what folks like us have to go through. Quite an achievement!

I see: apparently DOE for the pool pump industry...

When you say "they" you mean? I would be surprised if "all" motors would be impacted equally. Pool pump motors sure, but not necessarily motors in other industries, presumably as that would require coordination beyond what is achievable among residential pool pump suppliers. Perhaps this is...

A beneficial simplification going forward in my view!!

I'll research this just to be on point. Thank you mas985 for all your very helpful feedback!

Glad to see you confirming my selection but I obviously need to learn the right terminology! I erroneously thought a motor with a service factor of 1 is full rated while one with a SF higher than 1 is up rated. It instead looks like a motor with a SF of 1 is up rated while one with a SF higher...

Thanks on 1. and 2. this is good news, and yeah, I am not 100% sure on the impeller. Glad you noticed! I was hesitating between SPX3005C and SPX3007C. The Century UCT1072V1 motor is full rated (at 3/4HP) so I think would work with SPX3005C. SPX3007C is compatible with full rated at 3/4HP but...

Learned a lot disassembling. I confirmed I have a SP3015X20AZ pump with diffuser SP3021-B, impeller ring SP3021R, impeller SP3021-C, all of which match the original 2HP motor (which was replaced with the uprated Century version). I think these 3 parts need to be replaced in my use case. The...

Good point! Will disassemble and go from there.

Great regarding the valve: thank you mas985! The pump was purchased after 1990 so if the impeller looks like SPX3021B (3rd row in the table), I guess I need to change it to a SPX3000BN (2nd row in the table).

Thanks! The idea is for the new 110V motor to be able to run on a backup genset when needed (to avoid the pool turning green during an extended outage). The genset only delivers 110V so the motor has to change. In that case, the impeller has to also change (as I understand a 2HP impeller shall...

Hi everyone, I have a spare Hayward Super II pump (SP-3015X20 I believe) I'd like to use on a 110V pad. It has a 2HP Emerson K63CXERA-4768 motor (220V) that replaced the OEM Hayward, I think, C48J2N131B3 (also 220V). Can I swap that 220V motor for a 3/4HP 110V equivalent compatible with the...

Thank you Lisa: adding more MA than usual at once (following the pool calculator) rather than frequent smaller doses worked. I ran out of MA to reach a TA of 70 but TA is now down to 80 from 90 :-)

Moderator note - Moved from here: hth stabilizer conditioner? same as cya? Resurrecting an old thread as I have a question after using this HTH product. The one I used is that at http://www.homedepot.com/p/HTH-4-lb-Stabilizer-and-Conditioner-61316/100239944. It lists CYA at 96%, the rest...

Do you mean that I should reach a point (if I first lower the TA to 70 and reduce pH from 7.8 or higher to 7.6 instead of 7.4) where I would no longer observe TA dropping? That would be really nice as adding baking soda every time I need to drop pH is not only annoying but wasteful. Ok, so...

chem geek, the week has been busy... Thank you for your explanations that did clarify all I need to do to avoid heater (and pool finish) damage is to check my CSI fairly regularly and ensure it does not drift beyond acceptable values. Easy enough! Re Hayward's documentation, it does not discuss...

Thank you chem geek. It looks like I was replying to TomBord and Jason when you replied to me... I do not have a SWCG. I am using grocery store bleach (and Trichlor only once or maybe twice a year for a few days when my CA needs to go back up as right now). Looking at the Hayward heater...

Good and thank you! It looks like Hayward is just giving industry-accepted ranges so I'm not sure the min of 80 is even that important. My problem is that pH tends to rise so no risk of a low pH corroding the heater. I understand that once I borate the pool it'll be hard to change the TA hence...

I have a Hayward H400FD running on natural gas in line with my pebble sheen pool (refinished more than a year ago). It has a cupro-nickel heat exchanger. Hayward recommends a min TA of 80. I use bleach to sanitize. Would it be safe to this heater to set the TA to 70 to counter fairly frequent pH...