I used wash machine purge pump (the one that pumps used water into sewer...) it worked, but I gave up on this one.
* My first coolant system I didn't realize plumming was that important. Tray was way too big (it still is) not enough list -> needs a large volume of coolant
* This motor was split phase = cheap to mfg. but can be used only intermitent duty = fine for saw with my use, but not much use on lathe or milling machine.
* Resorted to a total loss system with only manual dripfeed = fine for band saw and I only mix 0.5 litres of coolant at a time.
Now....I have a resipocating pump from espressomachine. It says 15 bars max. pressure and a little volume. Wish I would know if seals would take any cutting oil or coolant. I'm thinking of trough cooled small drills

Pekka