The Dark World of Capacitors (for me)

Jaeger_S2k · 2026-03-25T15:15:59+0000

Water Pump Stuart Turner Boostmatic 6000.
Great pump, but I have the following capacitor that appears to be broken.
There is a range of prices being thrown up from £4 to (if you mention Stuart Turner) £35.

This is the suspect, it's 4 spades and no base bolt.
I've been led to believe that the ones with base bolts like this ...

Are bad.

I did find Aquaflowproducts but can't register or buy from them. Strange.
Any help finding suitable would be wonderful.

hotponyshoes · 2026-03-25T16:00:58+0000

Pardon our interruption...

It's £14 but no faffing about.

Or, scroll down that page and there are generic ones under 'similar items' for £5 or so if you don't mind messing about with flying leads and crimp connectors..

hotponyshoes · 2026-03-25T16:05:27+0000

Pardon our interruption...

Should do the job as well although how long it will last?..

I think that's fairly standard in Washing machines etc so any local repair place (or the tip!) might have one

fizzy · 2026-03-25T16:13:30+0000

Jaeger_S2k said:
Water Pump Stuart Turner Boostmatic 6000.
Great pump, but I have the following capacitor that appears to be broken.
There is a range of prices being thrown up from £4 to (if you mention Stuart Turner) £35.

View attachment 534321

This is the suspect, it's 4 spades and no base bolt.
I've been led to believe that the ones with base bolts like this ...
View attachment 534322

Are bad.

I did find Aquaflowproducts but can't register or buy from them. Strange.
Any help finding suitable would be wonderful.

Base bolt is just for mounting - nothing more or less.
Number of terminals dont matter either - just make sure it has the right rating. Many of the dirt cheap ones can fail pretty quickly.