⚠️ This forum has been restored as a read-only archive so the knowledge shared by the community over many years remains available. New registrations and posting are disabled.

All times are UTC + 8 hours




Post new topic Reply to topic  [ 46 posts ]  Go to page Previous  1, 2, 3, 4  Next
Author Message
 Post subject:
PostPosted: Feb 28th, '08, 13:38 
Bordering on Legend
Bordering on Legend
User avatar

Joined: Nov 27th, '07, 20:00
Posts: 322
Location: Ballarat
Gender: Male
Lungy wrote:
I was looking at these Hudson`s awhile back.With our dollar now worth 94+ US cents definitely time to grab one or two


I've got Simon from landmark on the job, so hopefully we'll soon be able to buy them Australia wide as easy as the 600lt growbeds! :)


Top
 Profile  
Reply with quote  
    Advertisement
 
PostPosted: Feb 28th, '08, 16:08 
Seriously, this cant be healthy.
Seriously, this cant be healthy.
User avatar

Joined: Aug 24th, '06, 19:46
Posts: 6604
Location: sunbury
Gender: Male
Are you human?: no
Location: sunbury
Just googled hudson ball valve theres a lot of reasons not to use one [about 4th entry down]


Top
 Profile  
Reply with quote  
PostPosted: Feb 28th, '08, 17:35 
Bordering on Legend
Bordering on Legend
User avatar

Joined: Nov 27th, '07, 20:00
Posts: 322
Location: Ballarat
Gender: Male
Food&Fish wrote:
Just googled hudson ball valve theres a lot of reasons not to use one [about 4th entry down]


Or you could just post the link to make sure we're on the same page :P If you're talking about this, I'm still keen, I haven't found anything (skimming over that page) to dissuade me from at least giving it a go :)

DanDMan said he's been using it and it's never failed. As I'm topping up from a tank and not mains, I'm not really worried if it gets stuck on. Also as the tank is only 2200lt, even if the tanks was completely full and if the valve even failed, she'd be right :P (as I've accidentally left it on once before when I was topping up, fish didn't seem to mind.)


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Feb 28th, '08, 21:20 
A posting God
A posting God
User avatar

Joined: Sep 4th, '07, 04:16
Posts: 2475
Location: Texas
Gender: Male
Are you human?: YES
Location: Texas 75703
I am topping off from a water line. It does seal under the air that I can blow into it, so it should work if you have a little pressure from elevation. The 1/2 inch valve has an operating pressure of 0 to 100 pounds so I'm sure that one will work fine.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Feb 29th, '08, 03:36 
Bordering on Legend
Bordering on Legend
User avatar

Joined: Nov 27th, '07, 20:00
Posts: 322
Location: Ballarat
Gender: Male
DanDMan wrote:
I am topping off from a water line. It does seal under the air that I can blow into it, so it should work if you have a little pressure from elevation. The 1/2 inch valve has an operating pressure of 0 to 100 pounds so I'm sure that one will work fine.


Yeah mate, I noticed that, I'll be getting the 1/2" because of that reason :) I think it's 8lb for the 1", dunno if it'll get to that, it's really just a trickle as the tank is only about 1-1.5m above the pond level.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mar 1st, '08, 15:26 
Seriously, this cant be healthy.
Seriously, this cant be healthy.
User avatar

Joined: Feb 23rd, '07, 03:48
Posts: 6715
Location: Lyonville Victoria
Gender: Male
Are you human?: yes
Location: Lyonville
What about a pvc pipe with an enlarger (oposite of a reducer but the same thing backwards (did that make sense)) and then a larger section of PVC pipe pointing down into the tank. Inside the larger pipe put a rubber ball and the pressure from the surrounding water would keep it closed when the tank was full and let water in when it was too low.

It would probably be really fiddly to set up but once done it should be reliable.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mar 2nd, '08, 15:24 
Seriously, this cant be healthy.
Seriously, this cant be healthy.
User avatar

Joined: Aug 21st, '06, 16:07
Posts: 5323
Location: Brisbane
Gender: Male
Good idea Stuart, only I have reservations in it working correctly.

e.g. a 200 litre drum stands ~900mm (used as header tank) - drum full there is "x" amount of pressure pushing down on the ball, the level is set so that the pressure pushing up on the ball from the depth of the sump tank is greater than what is applied from the pressure applied from the full drum until the water level drops in the sump tank, the ball falls and water flows out of the drum.


Now the drum is half full, this means less pressure applied from above and the the settings for the water level set previously are now out of whack.

This would mean that as the water level drops in the header tank (drum), the water level in the sump tank would have to drop lower before water would be added to top it up

Not sure if the height difference of the water in the header tank would cause too much difference in the water level in the sump tank...needs someone to take a hit for the team :lol:

I have used a 200l drum as an example


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mar 2nd, '08, 16:31 
Site Admin
Site Admin
User avatar

Joined: Mar 22nd, '06, 00:28
Posts: 12757
Location: Melbourne, Victoria
Gender: Male
Are you human?: YES- kinda
Location: Melb Vic OZ
Quote:
e.g. a 200 litre drum stands ~900mm (used as header tank) - drum full there is "x" amount of pressure


x=8.8kpa ;)


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mar 2nd, '08, 16:56 
Seriously, this cant be healthy.
Seriously, this cant be healthy.
User avatar

Joined: Aug 21st, '06, 16:07
Posts: 5323
Location: Brisbane
Gender: Male
Thanks Steve :D


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mar 2nd, '08, 17:31 
Site Admin
Site Admin
User avatar

Joined: Mar 22nd, '06, 00:28
Posts: 12757
Location: Melbourne, Victoria
Gender: Male
Are you human?: YES- kinda
Location: Melb Vic OZ
no probs ;)

for future reference 1000 mm water = 9.8kpa


Top
 Profile  
Reply with quote  
PostPosted: Mar 2nd, '08, 19:52 
Bordering on Legend
Bordering on Legend
User avatar

Joined: Nov 27th, '07, 20:00
Posts: 322
Location: Ballarat
Gender: Male
lol, that was the 'design in my head' I spoke of in the first post, well something similar that involved a float at the bottom of a rod with a rubber connection up the top to plug the inlet, more pressure etc... hard to explain, but same principle :P

After thinking about it though, for $30US, that valve sounds like a good deal, I've read quite a few positive things about it, and Dan offers his personal endorsement :)


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mar 4th, '08, 04:44 
Seriously, this cant be healthy.
Seriously, this cant be healthy.
User avatar

Joined: Feb 23rd, '07, 03:48
Posts: 6715
Location: Lyonville Victoria
Gender: Male
Are you human?: yes
Location: Lyonville
Bugger.

That would be why the ball valves have a lever.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mar 4th, '08, 12:35 
Bordering on Legend
Bordering on Legend
User avatar

Joined: Nov 27th, '07, 20:00
Posts: 322
Location: Ballarat
Gender: Male
Stuart Chignell wrote:
Bugger.

That would be why the ball valves have a lever.


You might be on to something there :P


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mar 4th, '08, 13:26 
A posting God
A posting God

Joined: Sep 15th, '07, 09:09
Posts: 3712
Location: WA
Gender: Male
Kenour

B do a very good replacement for caroma float valves called a fluidmaster, $19 when I last got one. Does not have a long lever and can fit in a pipe (if you want it to look pretty). Pic attached, mouse for scale.
Might be worth checking out.


Attachments:
IMG_0007 (Medium).jpg
IMG_0007 (Medium).jpg [ 57.12 KiB | Viewed 2956 times ]
Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mar 4th, '08, 13:30 
Legend Member
Legend Member
User avatar

Joined: Apr 24th, '07, 00:52
Posts: 610
Location: High desert
Gender: Male
Are you human?: yes
Location: Nevada USA
This is what I use, about $10
Image


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 46 posts ]  Go to page Previous  1, 2, 3, 4  Next

All times are UTC + 8 hours


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron

Powered by phpBB® Forum Software © phpBB Group
Portal by phpBB3 Portal © phpBB Türkiye
[ Time : 0.150s | 17 Queries | GZIP : Off ]