Matt,
Sorry I don't know you or your kit, but I have done my own Mod33 fuel drain
for years.
About 5 aircraft have a simple 90 degree fitting epoxied to the floor of th
e aft floor behind the flaps so it is easy to drain.
Make a pair of holes in the aft baggage bay area beyond the flap. Hole sho
uld fit a 1/2 inch socket for the Safeair drain.
Attach the Safeair to a 1/8" NPT 90 degree fitting. Brass or aluminum is O
K.
Grease your socket and insert into your sealed and prepared drain hole.
Place the 90 degree and drain assembly and glue in with Redux.
A variation is to make a ply plate for the 90 degree/drain assembly and re
dux the assembly to the plate then simply glue the plate into your prepped
holes. Very neat. Simply remove the Safeair and screw in a plug during pa
inting.
I have a street tee screwed into the two 90 degree brass fittings for my f
uel quantity experiment pictured below.
The orangish tube is my sight gauge which was added after the original buil
d. Today I pipe it into the Fuel Boss.
[cid:image003.jpg@01D745DA.D9DB3D50]
Most of my Trigear guys put the drains in the tank fuel boss.
Mono guys put them behind the wing.
Below is a typical under the belly fuel drain using a simple 1/8 NPT nipple
and a tee to make a drain and sight gauge line.
[A picture containing indoor, gear Description automatically generated]
There are as many variations as there are airplanes. Note I put my feed li
ne through the back and into the seat well where I install fuel filters wit
h quick disconnects.
I=92m lazy. I have a fuel drain pan and drain hole just in case there is a
leak.
[A picture containing indoor Description automatically generated]
Work with your inspector to see what works for you.
Best Regards,
Bud Yerly
-----Original Message-----
From: owner-europa-list-server@matronics.com <owner-europa-list-server@matr
onics.com> On Behalf Of Matt Dovey
Sent: Sunday, May 09, 2021 1:21 PM
Subject: Europa-List: Water Drain
ilto:mattdovey@hotmail.co.uk>>
Does anyone know if there is an alternative to Mod 33 water drain valves mo
d? For what ever reason my aircraft has never had the mod done even though
its been run on Mogas. I want to add drain valves but not keen on Mod 33
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