Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-22-2013, 09:59 PM   #1
Guru
 
River Cruiser's Avatar
 
City: UMR MM283
Vessel Name: Northern Lights II
Vessel Model: Bayliner 3870
Join Date: Jan 2013
Posts: 1,357
Fun day

Click image for larger version

Name:	image-3225498263.jpg
Views:	182
Size:	65.5 KB
ID:	24009
I've gotten more experience working on a head than I ever wanted, hope it's a long while till I get any more. The macerator motor quit, luckily I had a spare motor & pump assembly. I've been contemplating replacing all the waste system plumbing when the project list gets shorter, I don't think it'll ever get short enough for me to want another day like today.
__________________
Ron on Northern Lights II
I don't like making plans for the day because the word "premeditated" gets thrown around in the courtroom.
River Cruiser is offline   Reply With Quote
Old 10-22-2013, 10:16 PM   #2
Guru
 
BruceK's Avatar
 
City: Sydney
Vessel Name: Sojourn
Vessel Model: Integrity 386
Join Date: Oct 2011
Posts: 13,293
Most people locate them more privately.
I guess it`s the last job we ever want to have to do on the boat.
__________________
BruceK
2005 Integrity 386 "Sojourn"
Sydney Australia
BruceK is offline   Reply With Quote
Old 10-23-2013, 06:25 AM   #3
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,119
I was going to toss my old head after the hand pump quit...but I found a common PVC elbow that was a perfect fit for the end where the cleanout plug was....so I did a vertical drop to another 90 that went right into a cheapo macerator screwed to the base (underneath upside down). I also had a length of 1" hose that I feed to the holding tank. Added a push button for the macerator. Use a cup of water from the sink to flush (it's the spare head anyway).

Whole project cost around $100 and took a day to piece together after finding that PVC elbow by luck.
psneeld is offline   Reply With Quote
Old 11-09-2013, 09:02 PM   #4
Veteran Member
 
RMoore's Avatar
 
City: Marina Del Rey, Ca.
Join Date: Oct 2012
Posts: 31
I'm installing a replacement holding tank. The output of the tank is on the bottom. I want to put a diverted valve right after the output of the tank so I can direct the sewage to a macerator, then to a thru-hull for direct discharge (when allowed)...or..direct the flow to a deck pump out when in a marina. The question is regarding the height of the diverted valve in relation to the holding tank outlet. Would it work if the diverted valve was located at the same height as the top of the holding tank? Or do I rely on gravity and have to locate the diverted valve at the lowest possible location (there's no way to locate the valve lower than the tank). I have heard conflicting opinions. Anybody have thoughts or experiences to share?

Sent from my iPad using Trawler
RMoore is offline   Reply With Quote
Old 11-10-2013, 05:48 AM   #5
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,119
Quote:
Originally Posted by RMoore View Post
I'm installing a replacement holding tank. The output of the tank is on the bottom. I want to put a diverted valve right after the output of the tank so I can direct the sewage to a macerator, then to a thru-hull for direct discharge (when allowed)...or..direct the flow to a deck pump out when in a marina. The question is regarding the height of the diverted valve in relation to the holding tank outlet. Would it work if the diverted valve was located at the same height as the top of the holding tank? Or do I rely on gravity and have to locate the diverted valve at the lowest possible location (there's no way to locate the valve lower than the tank). I have heard conflicting opinions. Anybody have thoughts or experiences to share?

Sent from my iPad using Trawler
I think it matters less where the valve is...but you want a deep loop down in the hose leaving the tank so the macerator can empty better without sucking air.

I believe many have done this install without a "y" valve...they just use a "T" . ...
psneeld is offline   Reply With Quote
Old 11-10-2013, 07:10 AM   #6
Guru
 
CaptTom's Avatar
 
City: Southern Maine
Vessel Model: Prairie 36 Coastal Cruiser
Join Date: Dec 2012
Posts: 2,714
Quote:
Originally Posted by RMoore View Post
Would it work if the diverted valve was located at the same height as the top of the holding tank? Or do I rely on gravity and have to locate the diverted valve at the lowest possible location.
Here's a fact that will inform my own holding tank re-design: My previous boat came from the factory with the macerator mounted on the top of the tank, with a "T" off the hose that went to the deck fitting. No "Y" valve. This arrangement worked great for 10 years, pumping overboard when off shore and using pump-out facilities dockside.

I like this arrangement because it minimizes the number of fittings below the "waterline" of the holding tank. Murphy's law dictates that any failures in the waste plumbing will invariably occur when the tank is full. It's bad enough working on those hoses when empty.
CaptTom is offline   Reply With Quote
Old 11-11-2013, 05:35 AM   #7
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 22,553
No Y or thru hull is needed if you like KISS.

Simply use a fitting and hose in the deck fitting when the waste is pumped overboard.

Loads easier to pass inspection from the Fed Marine Poop Police too.
FF 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


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 03:48 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012