Fun fact, the silicone hosing I posted earlier doesn't work in the peristaltic pump. I kept getting no water sample until I swapped back to the old tubing. Not exactly sure why, but my guess is something with the friction of the surface of the tube being insufficient to allow the rollers to grab it.
Here is the tubing actually used in the Trident. 25' for $66, then $20ish shipping. Might be a good one for a few people to go in on if they feel like doing home refurb of Trident units. (Sorry Aperture, should step up your refurb game if you don't want people like me getting frustrated and reverse engineering your product.)
Nest step might be to find the solenoids used and swap them in and out.
PharMed AY242002 1/16" ID x 1/8" OD x 1/32" Wall 25ft Package Length - BPT Tubing is ideal for Diagnostic Test Product Manufacturing, Cell Harvest and Media Process Systems, Vaccine Manufacturing, Bioreactor Process Lines, Production Filtration and Fermen
hosewarehouse.com
Found these solenoids which say they are for the Trident
Find many great new & used options and get the best deals for Neptune Apex Trident Replacement Pinch Valve Solenoid at the best online prices at eBay! Free shipping for many products!
www.ebay.com