myHanse.com - Hanse Yacht Owners Website myHanse.com - Hanse Yacht Owners Website myHanse.com - Hanse Yacht Owners Website myHanse.com - Hanse Yacht Owners Website

Welcome to myHanse.com the forum for Hanse Yachts owners throughout the world.

Forum Home Forum Home > Hints & Tips > 575/588
  New Posts New Posts RSS Feed - Accumulator tank
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Accumulator tank

 Post Reply Post Reply
Author
Message
Black Diamond View Drop Down
Vice Admiral
Vice Admiral
Avatar

Joined: 24 October 2015
Location: Newport, RI, US
Status: Offline
Points: 923
Post Options Post Options   Thanks (0) Thanks(0)   Quote Black Diamond Quote  Post ReplyReply Direct Link To This Post Topic: Accumulator tank
    Posted: 20 August 2019 at 02:58
Has anyone added an accumulator tank to the freshwater system of the 575?  I'd like to reduce the cycling of the pump for galley sink, dishwasher and washer/dryer use.  

If so,  what brand/model did you use?   How big is the tank?    Where did you mount it?    It seems like there is room with the pump in the forward head cabinet, but I'm interested in options as well.

Rick
S/V Black Diamond
Hanse 575 Build #192, Hull# 161
Newport, RI
Back to Top
Wayne's World View Drop Down
Admiral
Admiral
Avatar

Joined: 18 July 2012
Location: Cruising
Status: Offline
Points: 1111
Post Options Post Options   Thanks (0) Thanks(0)   Quote Wayne's World Quote  Post ReplyReply Direct Link To This Post Posted: 20 August 2019 at 08:13
Rick,

I fitted a small 2 liter, stainless steel accumulator tank made by Marco in Europe, Model ATX-2, cost about E90. Because it is fairly small I fitted it next to the FW pump in the owner heads. I was also concerned about the cycling of the FW pump. I fitted it about 3 years ago when the boat was 2 years old. The Jabsco FW pump is still the original. Not sure if the accumulator tank has extended the life of the pump but it does reduce the constant start/stop of the pump. A larger accumulator would be better but at the time I couldn't find a later SS accumulator. I have since seen larger units (8-20 liter)which are for domestic/household use and are painted steel.    
Wayne W
Cruising, currently in the Caribbean and will head across the Pacific early 2024
Back to Top
Persephone View Drop Down
Sub Lieutenant
Sub Lieutenant


Joined: 17 July 2017
Location: New England, US
Status: Offline
Points: 16
Post Options Post Options   Thanks (0) Thanks(0)   Quote Persephone Quote  Post ReplyReply Direct Link To This Post Posted: 20 August 2019 at 12:40
I fitted a Groco PST-1 on my boat (a Dehler). Unlike some of the smaller accumulator tanks, the installation manual for this one advises fitting it as far from the pump as possible. Mine is installed near the cockpit shower. Pressure is easily adjusted using a bike pump.

It's available from Defender for about USD 90.
Back to Top
SVZara View Drop Down
Captain
Captain
Avatar

Joined: 04 November 2018
Location: Boston, MA
Status: Offline
Points: 196
Post Options Post Options   Thanks (0) Thanks(0)   Quote SVZara Quote  Post ReplyReply Direct Link To This Post Posted: 20 August 2019 at 21:30
Back to Top
Black Diamond View Drop Down
Vice Admiral
Vice Admiral
Avatar

Joined: 24 October 2015
Location: Newport, RI, US
Status: Offline
Points: 923
Post Options Post Options   Thanks (0) Thanks(0)   Quote Black Diamond Quote  Post ReplyReply Direct Link To This Post Posted: 25 August 2019 at 15:40
By the water pump I have a space where I could mount an 8" diameter tank that is 12" long.    I like the idea of mounting it somewhere else, though...   I can get a bigger tank and not impair my ability to replace the water pump quickly (it is easy now).     The GROCO says it can be mounted anywhere in the cold water system on the pressure side of the tank.. 

Before I go looking for mounting locations, anyone have any nice locations they can recommend?
Rick
S/V Black Diamond
Hanse 575 Build #192, Hull# 161
Newport, RI
Back to Top
Wayne's World View Drop Down
Admiral
Admiral
Avatar

Joined: 18 July 2012
Location: Cruising
Status: Offline
Points: 1111
Post Options Post Options   Thanks (0) Thanks(0)   Quote Wayne's World Quote  Post ReplyReply Direct Link To This Post Posted: 25 August 2019 at 16:46
Rick,

On our boat the fwd floor void aft of the bed and port side near the head is virtually empty. It has the through hull for the RW for the fwd head but that is all. Plenty of space to fit a larger tank there. I think you could run the required water pipes to and from fairly easily.
Wayne W
Cruising, currently in the Caribbean and will head across the Pacific early 2024
Back to Top
Agathe 341 View Drop Down
Lieutenant
Lieutenant


Joined: 28 March 2014
Location: Denmark
Status: Offline
Points: 21
Post Options Post Options   Thanks (1) Thanks(1)   Quote Agathe 341 Quote  Post ReplyReply Direct Link To This Post Posted: 25 August 2019 at 21:38

Water heated from 20 to 80 degrees is expanded by about 2%. If the hot water tank is 30 liters, it becomes 0.6 liters. The 0.6 liters must go out of systems, through the safety valve, or somewhere else in the water system. This is why I have expanded the water installation with a 2 liter pressure expansion tank. After this improvement, there is no longer water under the floor.
Ulrik Holt
Back to Top
Lykke View Drop Down
Lieutenant Commander
Lieutenant Commander


Joined: 07 January 2016
Location: Norway
Status: Offline
Points: 64
Post Options Post Options   Thanks (0) Thanks(0)   Quote Lykke Quote  Post ReplyReply Direct Link To This Post Posted: 29 August 2019 at 08:42
Hi, I managed to find room for one of these just under the kitchen sink:

Impressed by how long it holds the water-pressure in the system. Would have guessed there might have been some small leakage back through the pump or in some taps or couplings. But when I have not used the boat for some weeks, I may still get water out of the tap before starting the pump when coming back.

Have mounted it this way to be able to empty it together with rest of the system before it freezes in the winter:


Lykke, Hanse 430e, #8 from 2007
Back to Top
Black Diamond View Drop Down
Vice Admiral
Vice Admiral
Avatar

Joined: 24 October 2015
Location: Newport, RI, US
Status: Offline
Points: 923
Post Options Post Options   Thanks (0) Thanks(0)   Quote Black Diamond Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2019 at 00:00
I ended up putting it in the forward head, next to the water pump.   Works fine and it fits without impacting the ability to open the head discharge valve.   I ended up giving it a few pumps but it pretty much works right out of the box...





Rick
S/V Black Diamond
Hanse 575 Build #192, Hull# 161
Newport, RI
Back to Top
kipwrite View Drop Down
Commadore
Commadore


Joined: 14 October 2015
Location: New York
Status: Offline
Points: 408
Post Options Post Options   Thanks (0) Thanks(0)   Quote kipwrite Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2019 at 03:12
On my 505, the accumulator tank snugged in nicely in the forward head adjacent the fresh water pump, just behind the basin drain. Easy to install and a major improvement. 

Edited by kipwrite - 28 October 2019 at 03:13
Kipwrite
Back to Top
 Post Reply Post Reply

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.06
Copyright ©2001-2023 Web Wiz Ltd.

This page was generated in 0.078 seconds.

Links : www.hanseyachts.co.uk www.hanseyachts.com www.fjordboats.co.uk www.dehler.co.uk www.varianta.co.uk