The Norfolk BroadsThe Norfolk Broads
Username Password
Norfolk Broads Weather

Mon, 11 Apr 2016 7:20 am BST- Light Rain
5 Day Forecast

Wind 2.0 mph @ 40°
48.0°F/8.89°C Humidity 93% Pressure 29.65 (S)

Welcome to The Norfolk Broads Forum
This is THE Worlds Largest Forum devoted to the Norfolk Broads, here you can discuss issues about the Norfolk Broads. Or just somewhere to chat with others interested in the Norfolk Broads area. In 2015 forum members spent 2,048 days afloat on the Broads

Please Help Support The Norfolk Broads Forum
OR

The Norfolk Broads Forum / Broads Boat Owners Q & A / Pressure tank
login
join
Graphics Off
Search
Forum Members - Book your Hoseasons holiday today, Just call 0345 498 6296

This is a moderated forum Reply to this DiscussionReply to Discussion | Start new discussionNew Discussion << previous || next >> 
Posted By Discussion Topic: Pressure tank

Similar Threads That Might Help :
Lift Out and Pressure wash| Oil Pressure advice| Pressure cookers - bread-making| Oil pressure guage flicker 4108| Extreme Pressure.| Under Pressure|

-- Page: 1 2

book mark this topic Printer-friendly Version  send this discussion to a friend  new posts last

Paladine
Jun-18-2018 @ 4:41 PM                           Permalink
reply
edit
profile
send p.m.
Mudplug Juggler
Posts: 7671
Joined: Jul 2008
Paladine
          

Add To Ignore List


BB, have you got the problem sorted yet? If so, how?

"..for the avoidance of any doubt, the broads are not legally a national park and do not come under the national park legislation, and nor will they."
Parliamentary Under-Secretary of State for DEFRA (Hansard 2015)

BuffaloBill
Jun-19-2018 @ 7:18 AM                           Permalink
reply
edit
profile
send p.m.
Mardles sometimes
Posts: 2976
Joined: Dec 2008
BuffaloBill
          

Add To Ignore List
Hi Mr P.
Just got back last night so here is what I found....
The tank pressure was 11psi. I took the water pressure
off and then pumped the tank to 20psi. It seemed a bit
better but not what I would expect from a tank that size.
Then I found underneath one of the pipes, what seemed to
be a pressure switch in the pipe from the pump. There
was no indication of settings or even which way to turn
it for more or less pressure. Anyway, I screwed it right
down and it again seemed to improve things but not what
I would expect.
Due to other small jobs needing doing, I left it at that
for now. I would have felt better if I could have seen a
max. pressure rating on the tank but even using a mirror to
get to the underside, nothing.
So, a small improvement but still needs work. (Sounds like
my old school reports... Playful Wink  )

The older I get...
The better I was....!!

Marshman
Jun-19-2018 @ 7:29 AM                           Permalink
reply
edit
profile
send p.m.
Mardles sometimes
Posts: 3610
Joined: Oct 2006
Marshman
          

Add To Ignore List
Depends who you listen to!!! Mine works very well at about 6-8 PSI - the sort of pressures quoted are for when you have a direct system in your house and use them in that situation!

Not sure what would happen if I put that pressure into my boat....!!!

Dilligaf
Jun-19-2018 @ 8:39 AM                           Permalink
reply
edit
profile
send p.m.
Forum Regular
Posts: 497
Joined: Jun 2010
Dilligaf
          

Add To Ignore List
If the accumulator pressure is higher than the pump output pressure it may as well not be there as the pump will never fill the accumulator to give any advantage, it's the pump pressure that determines the rest.
I work on accumulator slightly lower than pump pressure and expansion tank slightly higher than pump pressure so it stays empty when cold and only fills when hot.

Dave.
Formerly 'LeoMagill'

Paladine
Jun-19-2018 @ 9:20 AM                           Permalink
reply
edit
profile
send p.m.
Mudplug Juggler
Posts: 7671
Joined: Jul 2008
Paladine
          

Add To Ignore List

BB, the following comments are based on my assumption that your accumulator tank is identical to the Jabsco/Cleghorn Waring CW288 tank I provided a link to earlier, and that your pump is a Par Max 3.5 (your photo was a bit fuzzy). I suggest the pressure switch you’ve found is from an earlier installation and is no longer required with the Par Max, which has its own internal pressure switch.

The maximum permitted internal pressure of the tank is 6 bar (90 psi). The cut-in pressure of the pump is 0.7 bar (10 psi) and the cut-out pressure is 1.8 bar (25 psi). The air pressure in the tank needs to be 2-3 psi below the cut-in pressure of the pump, so 7 or 8 psi. If you’ve pressurised the tank to 20 psi, you’ve stopped it from working.

This information is from the official Jabsco data sheets. May I suggest you set the system up as above and bypass the external pressure switch, which might well be working against the system, and be the cause of the problem.


"..for the avoidance of any doubt, the broads are not legally a national park and do not come under the national park legislation, and nor will they."
Parliamentary Under-Secretary of State for DEFRA (Hansard 2015)

PAGE: 1 2

Home Photo Gallery Days Afloat Contact Us
Chat Room Downloads Norfolk Broads @ Amazon Make My Logo
Shops & Businesses Members Gear Norfolk Broads @ EBay Holiday Calendar
Pub Guide Tide Tables SOS List Popular Threads
2017 Calendar Contest Make A Donation Links Hireboat Info
Norfolk Broads @ CafePress FAQ Broads Quiz Forum Events
Advertise With Us Forum Shop Boating Bits Stickys and FAQs Boating Bits Hirecraft List

 

 

 



Copyright © 2005 Y2KInternet, All Rights Reserved.