Best place to buy Spindle and VFD?

[Kitwn]

Charlie,
When you do look at the cooling I found that using larger diameter water pipe greatly inreased the water flow from the pump I bought. The spindle fittings take 5mm id pipe but I get double the flow rate through 5m of 8mm pipe with short 5mm stubs at the spindle end than I did through 5m of 5mm pipe. PVC pipe diameters and wall thickness may vary the world over but the 5mm supplied by my local hardware store is a tight fit inside the 8mm size so gluing in the stubs was no problem using the standard glue for PVC plumbing. One of the plastic barbs supplied with the pump was just right for the larger tube, the 5mm size required an expensive extra brass barb so there's a saving to be made there as well!

Kit