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Have customer with 5 year old plaster (new pool). Has some extensive copper staining (using some “blue” chlorine product). Plaster feels smooth to the touch. See pics. This forum has me paranoid about acid washes now.

I can't seem to find a 2 speed pump for an inground spa that is set up with pool type equipment and that has pump basket, etc., for inground set up. Of course, lots of 2 speed spa pumps out there without a pump basket. Current set up is a Sta-Rite Dura-glas Dual Speed Pump connected to a compool...

See attached pics. I assume this is crystallized calcium. Customer called me about this. Other company did an acid wash and closed up the pool and I'm afraid they did nothing to balance the chemistry. (have not been out to test chemistry yet, but obviously it is off). From research, seems like...

Have a customer with a Hayward Aqua Plus panel that wants to add wifi. From my research, the Aqua Connect system is discontinued and no longer supported so probably not something I would recommend to him which leaves the OmniPL upgrade kit. We just install and service way more Pentair sytems...

Got called out to a customer's house where his plaster seems to have some pretty extensive copper staining (see pics). I went out for a different reason and didn't have the jack's magic stain kit, but there are blue stains across large swaths of his pool. I will confirm, but they appear to be...

This is strictly a theoretical question, given that in most scenarios to achieve a proper LSI you're generally going to have a TA and pH that will be fine for your heater. Acknowledging that, does a copper heat exchanger care more about LSI or pH? Seems that LSI is mostly geared toward plaster...

Curious what others would recommend to upgrade a client from the compool 3800 system. Intellicenter? Their system consists of a single speed whisperflo, hayward aquarite salt cell, pentair MT250 heater (older/fireman switch connection). As part of the compool system, it includes a pool side...

Was contacted by a customer who wants a new equipment set. The pool is closed for the winter, but looking at the equipment room, it appears the equipment is connected to galvanized 1 1/2" plumbing (see pictures). The customer is telling me they were told by the pro who used to maintain/service...

Here are my measurements from my last visit... 8+ 190 TA 350 CH 0 CYA 3200 Salt/TDS Inground spa size is about 1400 gallons. I adjusted pH down to 7.2 and the alkalinity came down to 170. Customer has naturally high alkalinity in the water. Upon filling the spa a couple months ago, the...

We sold a refurbished Mastertemp 400 to a customer a few weeks ago. It ran for 2-3 weeks without issue then the customer calls me last week to tell me it's leaking for the air intake and that the heat exchanger is damaged. I of course want to do right by the customer. I didn't visually inspect...

I’m working on a heater that repeatedly cycles on and off but still seems to slowly climb in temperature. And it shuts down it’s giving me an HLS error. I replaced the thermal regulator which seemed to have some modest corrosion on it. And now it’s shutting down with an E05 error. Tracking the...

Does ANSIZ223.1 dictate how close a gas line can be next to the vent on a pool heater? A customer just sent me this picture wondering if the gas line is too close to the vent. My tech is telling me since the vent mostly vents upward, the gas line is fine and that code just indicates they can't...

Having trouble getting a Hayward Heater to connect to Pentair EasyTouch Panel for a client. See pics for how it is currently wired. As far as I can tell, it's a 24V connection on the heater board and 18V(?) on the pentair side, though it's connected to the heater port on the pentair panel. I...

Have a customer with an existing mastertemp 400HD and is interested in swapping out for the HDF400. It looks like the HDF400 includes some PVC pieces to allow it to drop into place for a mastertemp 400, which I would hope means it doesn't require any plumbing modifications, more or less. Any...

I’ve posted some chemistry questions here but first intellicenter question. I’m a new owner of a pool and spa business and learning every day, but still a ton to learn. One of my techs installed an intellicenter upgrade to an easy touch panel, and at the same time, replaced a manifold on a...

Just refilled an in-ground spa for a customer. Upon filling, the TA was very high. I tested 180 TA initially with a pH above 8 and requiring upwards of 50 drops of acid demand to bring it down. I left my test kit with the client who was regularly adding acid to bring it down (thought I don't...

Have a client that seems to have persistent low pH issues. They were using tri-chlor tabs which we suspect is the culprit (although, they used them for several months without any issue, then suddenly were having low pH problems). We previously did a drain and acid wash for them and it seemed to...

We recently drained and cleaned a pool for a client and filled back up and also converted to salt cell for the client. Pool was constructed 23 years ago, sits at probably 9000 ft so likely gets very high UV exposure in the summer and is used year round. It looks like the change in status quo...

I'm trying to advice a maintenance customer that we service whether or not they should replaster this late in the season (I'm in the mountain west). I've read through this guide https://www.troublefreepool.com/blog/2019/01/18/start-up-new-plaster/ And I've read this guide...

I was using the stain identification kit to identify some discoloration in a pool. It’s a turquoise green, most likely copper, but wanted to use the test to confirm. First time using the test. Pool parameters were very close to recommended levels. Upon putting in the shock, it immediately...

Trying to help a client determine whether to go with an automated liquid chlorine system or a salt cell generator. It's a rental property in the mountains and during ski season they will have 25-30 people in a relatively small pool, 11K gallons, for days on end. My instinct is to go with a...

I recently acquired a pool maintenance and service business with one quite experienced service/repair tech and one new maintenance tech. So I’m still learning every day and trying to become the resident chem “expert” for the group. Have a customer whose pH is unexpectedly dropping between...

All, looking for some feedback here. I’m a new owner of a pool maintenance company so still coming up to speed on everything. I do have a couple fairly experienced techs, but they don't seem to adhere to TFP methods much. Have a client with what appears to be black algae. Have read up on it in...

Have a client that has a small bromine therapeutic pool (5000 gallons). It has a green discoloration. I'm new to bromine, but have spent a couple hours researching it on this forum today. Seems like the recommendation is to "SLAM" it as you would a chlorine pool, just trying to target the right...