Impacted by Texas Freeze

Splitpi

Member
Apr 13, 2021
13
Dallas, TX
Pool Size
16000
Surface
Plaster
Chlorine
Liquid Chlorine
Hello, this is my first post so I apologize if blunt.

I was hit during the texas freeze and my Jandy JXI400N manifold along with my Jandy PB4-60 impeller did not survive. I lost power for a good 9 hours. After 3 hours of no power, I followed the pool builder manual and drained my pumps and filters. When I tried to drain the heater, nothing came out, so it was already toasted by then. The manual failed to mention my Fusion 2 chlorinator drain plug or the PB4 (but I suspect this was toast too). All total, I lost 7 valves, the Chlorinator, Heater Manifold, and Pool Vac pump (PB4). The chlorinator I had found up in Indiana and had it shipped down to me. I even helped out a local pool guy by picking up PVC connector parts for him while on a business trip to Florida as he could not get them elsewhere. Live and learn I guess. I have the parts on order from poolsunlimited, since early March but am still being told at least 6 more weeks. Looking for the following parts:
  • PB4-60 Parts
    • R0445500 - Polaris Mechanical Seal (these are not too tough to find)
    • R0536600 - Polaris O-ring Backplate (these are not too tough to find)
    • R0536400 - Polaris Booster Pump New Style Impeller (Pure Unobtanium)
  • JXI400 Parts
    • R0590005 - JXI Manifold Backplate (400 Series) (Pure Unobtanimum)
    • R0590100 - JXI Three Port Manifold (Pure Unobtanimum)
    • R0589500 - JXI Gasket and Seals kit (these are not too tough to find)
I saw another post by mjfederick here: Cracked heater manifold

I may try something similar for a short-term fix, but if anyone may have spares without too high of markup, please let me know. Thank you in advance.
 
Last edited:

Splitpi

Member
Apr 13, 2021
13
Dallas, TX
Pool Size
16000
Surface
Plaster
Chlorine
Liquid Chlorine
400AB644-7139-428C-A37A-66EF5E4A572E.jpeg6E98E1FE-0504-48A7-8F9E-B55C48B6A510.jpeg
So I took it apart today to verify what my pool guy said. The Versaflow valve was definitely cracked. The manifold had a small hairline on inside but I can not see it on outside. I think the cracked Versaflow was the issue my pool guy said
 

Splitpi

Member
Apr 13, 2021
13
Dallas, TX
Pool Size
16000
Surface
Plaster
Chlorine
Liquid Chlorine
As an update, my heater is now fully operational. I epoxied the broken piece back onto the VersaFlow. Drilled the corners out of the large crack so to stop it from growing. Then ground the cracks on both the inside and outside, then sanded around where the epoxy will go. Epoxied and fiberglass-reinforced all the cracks on the heater manifold. Finally, I sprayed it with a satin black so it looks nice.

The manifold was reassembled and then I built a static pressure test rig and pressurized it to 20 psi and let it sit for 30 minutes and observed no leaks. After it passed this test, I then removed the heater bypass and plumbed the heater back into the system.

I went ahead and ordered a new VersaFlow in case the epoxy gives way at some point. I still have the manifold on backorder and I'll just let that come in as it comes available so I have a spare for next time.

Anyways, great success. It is fixed!
 
Last edited:

Splitpi

Member
Apr 13, 2021
13
Dallas, TX
Pool Size
16000
Surface
Plaster
Chlorine
Liquid Chlorine
Final update. I noticed the heater was reading pool temps high and shutting off thinking the temp was at the set point of 80 when it was only 75. My first thought was... ok... bad temp sensor. Then I went and looked at where my pool guy put the temp sensor when he put in the bypass and it was on the outflow side of the heater rather than the inflow side. A quick 3/8 drill hole, a piece of scrap rubber, and a band clamp later the sensor was moved to the correct side. Now it is reading correctly.

If only I could find a PB4-60 impeller and my system would be back to normal.
 
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