Screen Printing Filtration System

justsprayed said:

Does anybody have any detailed instructions for making a filtration system for underneath the washout booth?

Im in Australia and cant find a supplier to just buy one

Click to expand...

You can't buy them in UK either. Probably because even with one it would still be illegal to pump waste water into the drainage system without a licence. If you have a licence then there is no need to filter.
Massive fine if you get caught.

You should check that also doesn't apply to Aus.

The simplest way to filter is to place a large sump or tank under your booth and from there pump the water through several canister filters, depending on how clean you want it.

Pre filter it as it runs out the washout booth into the sump to catch the largest lumps - use some screen mesh or a sieve or some fish tank foam stuffed down the plug hole. Pump through several canister filters. Start with 20 microns, then 5 microns. You can add a 1 micron filter at the end if you want, or even a charcoal filter.

Try to limit the amount of water you need to use.
A properly exposed 31 x 23" screen will use less than a bucket of water to wash out, but an under exposed one will use ten times that amount. Same with wash out - let the stencil strip do its job and you will use less than a bucket of water.