Experiments with removing 3d printing resin from Isopropyl Alcohol (IPA) with a siltation tube

I've been experimenting with removing solidified 3D print (UV Cure) resin from the Isopropyl Alcohol (IPA) washing vat. I built a siltation tube out of clear 3" PVC pipe (36" holds a gallon of IPA) that allows the cured UV resin to fall to the bottom of the tube. I drain the silt from the bottom of the tube with a valve and then filter and decant the IPA.
Items I suggest to replicate my tube:, which can be purchased at any local hardware store:
3" PVC tube (36-48" long)
[I used Clear so I could see what was going on, but opaque is cheaper and more easily available. It appears that 24-48 hours is as long as you need to let it sit before draining.]
3" to 1.5" PVC adapter
1-1/2" x 1/2" Schedule 40 PVC Reducer Bushing Spigot x FPT
1/2" hose bib with 90 degree (1/4 turn) ball valve
Thread Tape (Teflon)
PVC Solvent & Cement
I'll include Amazon Affiliate links to the above items so you can see exactly what I'm talking about...but I don't recommend you buy them there, as it is usually cheaper at a local hardware store.
3" Clear PVC: amzn.to/43DtkBg
3" to 1.5" adapter: amzn.to/3zZ3p9I
1-1/2" x 1/2" Schedule 40 PVC Reducer Bushing Spigot x FPT: amzn.to/3GMTeJ5
1/2" hose bib with 90 degree (1/4 turn) ball valve amzn.to/43sY8ES
Thread Tape (Teflon) amzn.to/3GLbTVI
PVC Solvent & Cement amzn.to/3GM7Ecz
I've also purchased these graduated cylinders, which I plan on using for decanting in the future... amzn.to/3L0Ot1g

[@theromeog]

Use a double valve setup. Close the bottom. Add a
Section of tube between the two. The close the top. Drain the bottom. And then it won’t mix.

[@DavidClunie]

So it looks like you're doing what they call in chemistry a titration, (edited out my comments as I hadn't watched til the and a d saw you got a smaller valve, nice.) Keep up the good work!

[@summetj]

I'd call it siltration, as we are removing the (cured resin) silt from the IPA by letting it settle to the bottom. With a titration you may use a similar shaped vessel, but you are mixing to reactants to determine how much is needed for a chemical reaction.