2019 R-27 Y valve?

Blueboy#1

Well-known member
Joined
Nov 27, 2025
Messages
59
Fluid Motion Model
R-27 (Outboard)
I’m getting a Coast Guard Auxiliary inspection and the question of where the Y valve is came up—any idea s?
 
Steve:

I have an R29 but…the set-up should be similar. Find where your black water (sewage) tank is. Then follow the discharge hose and you will see a pump (macerator) and a y-valve. That valve has to be tied, zip-tied, or valve handle removed to prevent discharge of raw sewage in restricted areas. FYI - our black water tank is under the bed.

M8ke
 
Its in the cabinet under the sink way in the back against the cabin wall.
 
Steve:

I have an R29 but…the set-up should be similar. Find where your black water (sewage) tank is. Then follow the discharge hose and you will see a pump (macerator) and a y-valve. That valve has to be tied, zip-tied, or valve handle removed to prevent discharge of raw sewage in restricted areas. FYI - our black water tank is under the bed.

M8ke
Just for fun, answer me a question. When we used to boat in Maryland we had the same laws about securing the valve. At one point we had a Boston Whaler with a vacuuflush head. It had a key for the electric switch, like an ignition switch on a car. Without the key one couldn’t discharge overboard so, in my mind, the discharge was secure. Not so! A zip tie on the valve was required. At a different time we had a Carver with a Y-valve. I secured it with a padlock. Not good enough! A zip tie is required because the padlock could be unlocked. On my next inspection I used a zip tie and then left an open packet of 50 (49) zip ties next to the valve. Perfectly acceptable. Maybe not logical but it met the regulations. Is this how it works in Washington State? I just want to be correct if I were to visit from. BC.. Locally, I have a padlock but I don’t want to be caught out by Regulations.
 
Chimo:

In my former work life, I was a USCG Boarding Officer and had to check MSD regs.

I did a quick check and found the following:

1. If boarded by the USCG, federal regs will be checked. The MSD must be secured in a manner that prevents any sewage discharge. Some acceptable manners include zip tying and padlocking the discharge valve closed.

2. I checked Washington state and it appears that they follow USCG regs including what is stated above.

I think the key question is what is an acceptable manner. In the case of your Boston Whaler, whoever did the boarding determined that the electric switch was not acceptable.

My standard SOP every year is that I carry the latest USCG boater’s guide and check the applicable state guide I will be operating in to ensure compliance. I like to have the documentation onboard to be able to have an informed conversation should I be boarded.

Mike
 
Just has a VSI with US Coast Guard Axuillary, and the last few years the Inspector said don't turn that 'Y' valve until your well at Sea. This time the Inspector said that needs a tie strap, so I zip ties it to get the sticker. Hope I remember to replace the zip tie prior to the next inspection.
 
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