Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-14-2021, 03:54 AM   #1
Lieutenant
 
Roc64's Avatar
 
Join Date: Aug 2020
Location: Lynnwood Wa
Posts: 86
Default Calling on other 2800 SCR owners...

I have a a manual flush head, but have a macerator with the 2 switches under the helm. Has hoping to find a person with similar boat with the same system who can educate me on the operation of it. I am Googled out. My Boat is a 1999.
__________________

__________________
1999 Maxum 2800 SCR
7.4 MPI / Bravo lll
Mike
Roc64 is offline   Reply With Quote
Old 10-16-2021, 12:25 PM   #2
Lieutenant
 
Roc64's Avatar
 
Join Date: Aug 2020
Location: Lynnwood Wa
Posts: 86
Default

bump!
__________________

__________________
1999 Maxum 2800 SCR
7.4 MPI / Bravo lll
Mike
Roc64 is offline   Reply With Quote
Old 10-16-2021, 01:19 PM   #3
Lt. Commander
 
Join Date: Jan 2016
Posts: 137
Default

I have a vacu flush that flushes the effluent from the toilet to the tank, but I also have the 2 switch macerator. I believe the macerator is to suck up what's in the black water holding tank, grind it up, and shoot it overboard. That's not legal anywhere in US waters to my knowledge, so I've never used it. My marina has a free pump out - that's how I empty the tank.
__________________
2003 3300 SE
2004_3300_SCR is offline   Reply With Quote
Old 10-16-2021, 01:23 PM   #4
Lieutenant
 
Roc64's Avatar
 
Join Date: Aug 2020
Location: Lynnwood Wa
Posts: 86
Default

trying to understand the process. Where it shoots it out from? And if/where the T of Y lever is to switch from manual to macerator mode
__________________
1999 Maxum 2800 SCR
7.4 MPI / Bravo lll
Mike
Roc64 is offline   Reply With Quote
Old 10-16-2021, 01:41 PM   #5
Lt. Commander
 
Join Date: Jan 2016
Posts: 137
Default

Not sure about the lever thing because I've never had one with a lever, but here's the through hull location for the macerator discharge from the manual ... it's the aft-most upper fitting ("upper" = in-line with the top of the swim platform) on the stb side. This is from a 2000 manual posted in the downloads section of this site, not sure if the 1999 is the same generation.
Attached Thumbnails
Screen Shot 2021-10-16 at 9.41.32 AM.png  
__________________
2003 3300 SE
2004_3300_SCR is offline   Reply With Quote
Old 10-16-2021, 01:44 PM   #6
Lieutenant
 
Roc64's Avatar
 
Join Date: Aug 2020
Location: Lynnwood Wa
Posts: 86
Default

Thank you! I appreciate this!
__________________
1999 Maxum 2800 SCR
7.4 MPI / Bravo lll
Mike
Roc64 is offline   Reply With Quote
Old 10-19-2021, 11:21 AM   #7
Captain
 
Join Date: Dec 2015
Location: Florida
Posts: 516
Default

Head will discharge into the tank. No Y-valve to my knowledge was installed by Maxum.
Macerators use a ‘deadman’ switch design where both momentary switches Need to be held in to turn on the macerator to pump from the tank to the overboard discharge.
A second line from the tank to the deck fitting is plumbed to allow for pump out.

This double switch setup was designed to prevent accidental discharge of waste.
I’ve run into issues with the USCG regarding this setup as most designs use a y-valve that can be secure in a closed position to prevent accidental discharge. After many discussions, and review of the actual statutes, they concluded that the system does meet the requirements needed to prevent accidental discharge due to the deadman style setup.
US allows discharge of untreated waste outside 3mi offshore. All other areas should be assumed to be no-discharge.
jparsons121 is offline   Reply With Quote
Old 10-19-2021, 01:15 PM   #8
Lieutenant
 
Roc64's Avatar
 
Join Date: Aug 2020
Location: Lynnwood Wa
Posts: 86
Default

Perfect! Thank you!
__________________

__________________
1999 Maxum 2800 SCR
7.4 MPI / Bravo lll
Mike
Roc64 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 07:55 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.