Ignoramus27303 fired this volley in
:

Since this seems to be a regular occurrence, I bought a strainer at
McMaster-Carr, item 9875K413. This is an awesome deal at $15, it is
actually large and can clearly do a great job trapping chips. It is
also easy to clean and replacement screens are available, not that
they are needed. I got one with clear bowl, so I cal see the situation
inside.

It shouldn't be. No chips large enough to clog your lines should ever
get into the sump.

I have 10-mesh screens at both table drains, then another finer screen
(14 mesh) on the sump return. I have similar tee fittings, and have
never had a clog. If you keep the chip size under about 14-mesh, they
just aren't going to affect the system, except for the occasional bind-up
at a restricting valve, which you can remove by opening the valve full-
bore, then re-closing it. I chose rotary valves for the reason that when
they're open, they're full open, with no restriction to flow.

I think the strainer is nice, but wholly unnecessary.

LLoyd