Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 13-11-2015, 02:02   #1
Registered User

Join Date: Jan 2015
Boat: Lagoon 450 F
Posts: 99
Water pump / Bilge

Hello owners

In our Lagoon 450 the water pump is in the portside stern cabin on the starboard side in a "locker". The pump a bit noisy. Did you somehow improved or silenced it?

How dry are the bilges of your boats?

Fair winds, Uli
__________________

__________________
Ulstue is offline   Reply With Quote
Old 13-11-2015, 03:16   #2
Registered User
 
DavefromNZ's Avatar

Join Date: Sep 2011
Location: NZ
Boat: Lagoon 450
Posts: 389
Water pump / Bilge

Hi Uli,

On the port side of the L450 are two whale gulper pumps for the shower sumps, one gulper pump for the bilge, one Rule 2000 for emergency bilge and the fresh water pump in a locker. Yes noisy but I don't think there is a solution apart from air plugs? I use this cabin as I sleep above the hot water (nice in winter and warms my socks in the under-bed draw) and shower heats quickly.

The gulper pumps that were installed up to about 2012 failed with the plastic gears ripping apart and Whale replaced 4 of mine.

I always had a wet bilge until I fully extended the shower heads and sealed the holes. Dry bilges now. Just as well as the bilge alarms fail and had to be replaced :-(

Cheers, Dave



Sent from my iPad using Cruisers Sailing Forum
__________________

__________________
DavefromNZ is offline   Reply With Quote
Old 13-11-2015, 05:58   #3
TOT
Registered User
 
TOT's Avatar

Join Date: Jul 2013
Location: Singapore
Boat: Lagoon 450
Posts: 273
Water pump / Bilge

Hi Ulstue
Check your water pump filter (it's at the front of the pump) and is a small plastic filter and as it clogs your water pump just gets louder and louder.

Refer to the photos as all you need to do is remove the filter (make sure you turn your pump off first), clean the filter.



SV TOT
Wayne 😃
Attached Thumbnails
Click image for larger version

Name:	ImageUploadedByCruisers Sailing Forum1447419446.426359.jpg
Views:	148
Size:	36.4 KB
ID:	112919   Click image for larger version

Name:	ImageUploadedByCruisers Sailing Forum1447419471.178887.jpg
Views:	161
Size:	31.2 KB
ID:	112920  

__________________
TOT Team
TOT is offline   Reply With Quote
Old 13-11-2015, 15:42   #4
Registered User
 
katsumi's Avatar

Join Date: Feb 2011
Location: Sydney,NSW, Australia
Boat: Lagoon 400
Posts: 153
Re: Water pump / Bilge

Hi Uli
We had the same issue on our boat, trouble is it is mounted onto a bulkhead so noise will resonate through the boat. I improved ours by installing some soft rubber motor mounts between the pump/accumulator assembly and the bulkhead, this made a reasonable improvement. Also check the air pressure in your accumulator tank, I found ours had a small hole in it and would loose pressure, causing I replaced it with a bigger size one made by Grundfoss and it works even better now.
The other thing you could do is relocate the pump to the bilge area, still mount it on a rubber mounts.
We have dry bilges normally, if they are wet then this becomes a priority #1 for us, if you have wet bilges is it salt or fresh water?
Recently we had a number of freshwater leaks, whilst plugged into the marina, I found out that the water pressure at the marina had somehow been increased, we found a few hoses leaking, also strainer cap cracked. Anyway I have adjusted out feed pressure valve and re secured the leaking hoses all good not.
__________________
Dream as if you'll live forever. Live as if you'll die today.
- James Dean -
katsumi is offline   Reply With Quote
Old 14-11-2015, 15:46   #5
Registered User

Join Date: Feb 2010
Location: Liveaboard cruiser. Home port Brisbane, Queensland, Australia
Boat: Lagoon 400
Posts: 820
Re: Water pump / Bilge

Good idea from Katsumi to replace accumulator with a larger size. This stores pressure so pump runs less frequently. It is possible to turn off power to pump before bedtime and stored pressure in accumulator will supply a few litres at the taps. Enough for a drink of water in the night but no one gets woken by that noisy pump.
The water pump on our L400 is a crappy Johnson unit. We have replaced rusty accumulator and several cracked strainer caps. Should have replaced whole unit with a better quality brand. At least Lagoon don't fit Johnson toilets! One of my mates has replaced 7 Johnson toilet macerator pumps on his Seawind.
__________________
tuskie is offline   Reply With Quote
Old 15-11-2015, 06:14   #6
Registered User

Join Date: Jan 2015
Boat: Lagoon 450 F
Posts: 99
Re: Water pump / Bilge

Thank you for your postings!
Regarding the bilge, we have quite a bit sealed. Most water on port side comes from the inlet to the water heater. We are looking further, now it is not much. I have wondered if it is condensed water. Thank your comments I know now that the bilge can be dry.

With regard to the freshwater pump: I will mount new as recommended by you, as it was my first idea. The filter is clean.

I have installed Johnson-toilets instead of the Jabsco. I do not think that they are really significantly quieter than the Jabsco.
__________________
Ulstue is offline   Reply With Quote
Old 16-11-2015, 16:10   #7
Registered User

Join Date: Feb 2010
Location: Liveaboard cruiser. Home port Brisbane, Queensland, Australia
Boat: Lagoon 400
Posts: 820
Re: Water pump / Bilge

Quote:
Originally Posted by Ulstue View Post

I have installed Johnson-toilets instead of the Jabsco. I do not think that they are really significantly quieter than the Jabsco.
Oh noooo! Johnson heads are very quiet. Silent in fact. That's because water gets into the macerator pump motor and it stops working. Can't be dismantled and repaired either.
__________________
tuskie is offline   Reply With Quote
Old 17-11-2015, 00:55   #8
Registered User

Join Date: Jan 2015
Boat: Lagoon 450 F
Posts: 99
Re: Water pump / Bilge

Thanks for your comment.

I'm not on the boat, and just can not check which fresh water pump is installed.

I chose the Johnson toilets instead the Jabsco, because of the technical data / spezifications. Johnsons should be quieter few a dezibell. And they perform better in tests of sailing magazines. I have never heard of any issues with Johnson. And myself have also not - but the boat is still fairly new.
__________________
Ulstue is offline   Reply With Quote
Old 25-11-2015, 08:08   #9
Registered User

Join Date: Jun 2015
Location: Sydney Australia
Boat: Lagoon 450
Posts: 50
Re: Water pump / Bilge

Thanks to all of you - Very use full post for me as I'm in the middle of trying to fix the Jabsco Floret quad diaphragm FW pump on my L450.

I left the boat for a week with the FW pump turned on - dumb as it had been 'intermittently' running without 'charging'. I hadn't worked our what the problem was - probably air in lines / maybe a leak (have about 500ml fresh water in stb 'owners cabin' bilge) and turned it off overnight etc. Anyway when i returned to boat the FW fuse was popped and after reseting it a couple of times (nifty feature that) I concluded the motor had burnt out - so today I have started the removal process. Lots of contortions and tricks as you'd expect, but does anybody know how to disconnect the motor wires from the electrical junction under the accumulator tank (see pic) I have disconnected the wires from the front of the pressure switch easy enough but I'm not familiar with this type of electrical junction.
Also after the fact did check my FW filter and found --- see attached pic (included as a warning to others with FW probe good to check first!)
/Users/georgestent/Desktop/IMG_1210.jpg
/Users/georgestent/Desktop/IMG_1211.jpg
__________________
gstent is offline   Reply With Quote
Old 25-11-2015, 08:30   #10
Registered User

Join Date: Jun 2015
Location: Sydney Australia
Boat: Lagoon 450
Posts: 50
Re: Water pump / Bilge

Oops here are the pics I meant to upload:

The problem electrical connection (this is rotted 90degrees so turn yr head to the left you can see the detached pump motor behind)

as well as the blue plastic found in the filter (just as a FYI)
Attached Thumbnails
Click image for larger version

Name:	IMG_1209.JPG
Views:	114
Size:	20.3 KB
ID:	113799   Click image for larger version

Name:	IMG_1210.JPG
Views:	125
Size:	31.6 KB
ID:	113800  

Click image for larger version

Name:	IMG_1211.JPG
Views:	115
Size:	24.8 KB
ID:	113801  
__________________
gstent is offline   Reply With Quote
Old 25-11-2015, 13:50   #11
Registered User

Join Date: Jun 2015
Location: Sydney Australia
Boat: Lagoon 450
Posts: 50
Re: Water pump / Bilge

I have worked out that you can't disconnect the pump from the tank so - No you can't disconnect at that electrical junction! So have now removed the whole unit for servicing. Cheers .. Im sure I'll be back with more L450 challenges soon....
__________________
gstent is offline   Reply With Quote
Old 26-11-2015, 03:05   #12
Registered User

Join Date: Jan 2015
Boat: Lagoon 450 F
Posts: 99
Re: Water pump / Bilge

Very interesting, thank you for the report. It should be possible to separate pump and tank. If you buy it, it is separated.
__________________
Ulstue is offline   Reply With Quote
Old 26-11-2015, 03:30   #13
Registered User

Join Date: Jan 2015
Boat: Lagoon 450 F
Posts: 99
Re: Water pump / Bilge

Hi Katsumi and Tuskie
What size are your new accumulators? Would you choose the same size again?
__________________
Ulstue is offline   Reply With Quote
Old 27-11-2015, 04:29   #14
Registered User
 
katsumi's Avatar

Join Date: Feb 2011
Location: Sydney,NSW, Australia
Boat: Lagoon 400
Posts: 153
Re: Water pump / Bilge

Hi Ulstue
Mine is a Grundfoss 2 litre, check out pumpwarehouse.com.au
It is about half the price of the original supplied tank, and has 5 year warranty. I had to do slight modification to the mounting frame to fit the slightly bigger tank in place.
Tuskie interesting your strainers have cracked, I have had the same problem, do you plug into dock water direct feed? I am assuming this is the problem with mine. A bit of a design fault as these strainers are normally on the suction side of a pump, I don't think they can handle the pressure from the dock water supply, not in the marina we are in anyway.
Have a good weekend.
__________________
Dream as if you'll live forever. Live as if you'll die today.
- James Dean -
katsumi is offline   Reply With Quote
Old 27-11-2015, 21:35   #15
Registered User

Join Date: Feb 2010
Location: Liveaboard cruiser. Home port Brisbane, Queensland, Australia
Boat: Lagoon 400
Posts: 820
Re: Water pump / Bilge

Ulstue, I've fitted a Grundfoss 8 litre. I just stores a bit more volume, not more pressure, so the pump runs for longer but less frequently.

Katsumi, no, we don't plumb to the dock water supply. I'm too worried that we'd blow a hose (or a strainer cap) and sink the boat. No, the reason that the strainer caps crack, in short time and very dependably, is that they are made by Johnson Pumps. They are consistently poor quality. I've had the misfortune to have owned several boats that have had Johnson pumps fitted; bilge, fresh water and deck wash. All have given me drama! Other owners have also reported similar issues, some even are inflicted with Johnson toilets.

My advise, in hindsight is to remove any Johnson Pump product, throw as far as possible and replace with Jabsco, Whale or Chinese no-name. Rant over.
__________________

__________________
tuskie is offline   Reply With Quote
Reply

Tags
bilge, water

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Best bilge pump to keep the bilge as dry as possible keelsidedown Plumbing Systems and Fixtures 21 01-08-2015 05:13
Gasoline Powered Pump for Bilge Pump clockwork orange Construction, Maintenance & Refit 19 18-06-2014 09:44
For Sale: PAR Electric System Water Pump and JABSCO Electric Bilge Pump hanks Classifieds Archive 3 05-03-2014 20:03
1990 Wellcraft San Remo Bilge Pump Locations and Foul Bilge Smell skyinb Powered Boats 2 25-06-2010 20:21
Gulper 320 Pump and Urchin Bilge Pump in Series ? bmartinsen Plumbing Systems and Fixtures 1 20-04-2010 21:14



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:58.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.