I think the housing of the pump is threaded so the nut may not even be necessary.That should be the nut for the liquid tight fitting just above. Looks like you'll have to disconnect the wires and run them through the nut.
It's not the dollars, I don't have space in my box. I worked on it quite a bit today. I decided to just use one relay for the heater. I now have lights, SWCG, solar, pump speeds, suction valve, return valve with inching, and heater controllable from my phone. Can't really complain.They're just a few dollars each. What do you have in mind?
speed | P1 | P2 | P3 | watts | chlorine | solar | cleaner | |
1 | 0 | off | off | off | 0 | ☐ | ☐ | ☐ |
2 | 1250 | on | off | off | 100 | ☐ | ☐ | ☐ |
3 | 1550 | off | on | off | 175 | ☒ | ☒ | ☐ |
4 | 1750 | on | on | off | 250 | ☒ | ☒ | ☒ |
5 | 1850 | off | off | on | 300 | ☒ | ☒ | ☒ |
6 | 2200 | on | off | on | 475 | ☒ | ☒ | ☐ |
7 | 2500 | off | on | on | 675 | ☐ | ☐ | ☐ |
8 | 3400 | on | on | on | 1600 | ☐ | NO | ☐ |