bah! my $#!7 is leaking!

CerealKiller · 7th June 2002, 10:19 AM

I finally got my act together and set up my system. I've been waiting all along for 1/2" barb for the intake of my Eheim 1250 but then I realised that it can run submersed so that's what I did!
Parts: Cyclone 2 w/b / Silverprop BA Rad / Eheim 1250 / re-inforced 1/2" PVC hosing and a shite load of silicone based sealant. / Esky

Problem: my set up leaks

as soon as I patch up one and let it set, another one decides to leak

anyway the real question is what's the proper way to attach a hose to a barb? what i've done is i've put the sealant on the barb (all around it) and put the hose over almost straight away. do i need to let it set? Also I've put metal clamps over the top to make it real tight. I thought that it'd be ok to get away with zip ties but it doesn't work

Cathar · 7th June 2002, 10:28 AM

Are you using this hosing?

If so, it needs to be clamped REALLY tight. I use worm-drive hose clamps and screw them down with a fair amount of pressure until the clamps start to visibly bite into the outer shell. I don't use any sealant at all. Make sure you push the hosing on as far as it will go onto any barbs, and clamp very firmly about halfway down the barb length.

I'm using this type of hose clamps:

CerealKiller · 7th June 2002, 11:12 AM

same hose and clamp lol

! i've got the clamp on as tight as it can go! hopefully when i test this arvo the sealant has done it's job!

blackoutmt · 7th June 2002, 6:39 PM

i use Eheim hose, no leaks at all

jaani · 7th June 2002, 7:47 PM

Cathar, how thick are the walls of that hose? Looks pretty thick!

How small a circle can you twist it into before it begins to kink? My Tygon is the 1/8" walled stuff, and while it won't kink completely very easily a sharp bend will make the hose begin to flatten somewhat.

CerealKiller, did you say you'd put sealant (Silicone?) onto the barb before placing the hose on or afterward? If you've squirted goop on the barb the hose probably isn't forming a tight seal around the barb. Also, are the barbs plastic or brass? You mentioned that the pump is underwater, so are the only places the leaks are coming from the barbs of the radiator and waterblock?

Cathar · 7th June 2002, 7:56 PM

Walls are about 3mm thick, so yeah, pretty chunky.

Very hard to make it kink. Down to a 10cm diameter circle it will hold it's shape pretty well. Beyond that it does start to flatten. Down to an 8cm circle the hose will start to flatten out. Down to 6cm it will have flattened quite significantly. Below that it pretty much flattens out, but still never really kinks.

maxdamage · 8th June 2002, 4:11 AM

that hose = gay no offence or anything

it may look special or different or something but leave it in the garden where it belongs!

Crash Dummy · 8th June 2002, 4:18 AM

I use simalar hose clamps to those in my system. They're pretty crap in the way they clamp. Around the area where the screw is is a bit of a dead zone. There's usually very little clamping pressure there. Try using a 2nd hose clamp as close to the first as possible with the 2nd clamps dead zone oppisate the the first's clamp's. Put both on real tight and you shouldn't have anymore leaks.

I was getting leaks by just using one hose clamp with eheim hose. I was better off using two or none at all.

Mred32 · 8th June 2002, 11:33 AM

Instead of the silicon goop, use some thread tape (plumbers tape) on the barbs. This is all I ever use except for the hose clamps (and the hose of course).

Mred!

Rampage101 · 8th June 2002, 12:22 PM

Quote:

Originally posted by maxdamage
that hose = gay no offence or anything

it may look special or different or something but leave it in the garden where it belongs!

You obviously don'y know that much, coz that is good hose, better than the standard vinyl.

maxdamage · 8th June 2002, 2:07 PM

no that hose is gay

its to fat, wont go round bends, likes to be straight in the garden

vinyl is better than that stuff

if you insist on using that stuff get smaller diameter stuff and heat up the end in hot water and REALLY stretch it over the barbs

to make a nice tight seal

clamps arent to stop leaks thier to stop the hose being ripped off

my rig has ehiem tubing and dosent have any clamps at all....and no leaks ......being running for 3 months now

maxdamage · 8th June 2002, 2:09 PM

also you dont need sealant and dont need pumbers tape

stretch the tube over the barb .....like i said above

Harvey · 10th June 2002, 1:40 AM

Quote:

Originally posted by maxdamage
clamps arent to stop leaks thier to stop the hose being ripped off
my rig has ehiem tubing and dosent have any clamps at all....and no leaks ......being running for 3 months now

Dude, no need to get all crossed up about some thick hose. I actually use the same hose as in the picture above in my system.
I think the emphasis of the other posts in relation to that particular hose is based on upon the SAFETY factor.

Sure you can throw on some eheim tubing without clamps and brag about there being no leaks, but if your system springs a leak in the near future, i would laugh at you until the cows mooo home. Putting clamps on the tubing is like cheap insurance for your expensive hardware.

chill out

[Q] · 10th June 2002, 2:36 AM

And if he gets bored he can pull it out and use it in a bong :P

Cathar · 10th June 2002, 5:59 AM

I use said hose but couldn't even be bothered to reply to such a rant. I even switched out my Eheim tubing for it too. The best bit about it is that it likes to bend without kinking, unlike the Eheim which started to collapse on me when used in-line after a while. Eheim is fine as long as you don't attempt to turn tight corners and don't attempt to use it in-line.

7th June 2002, 10:19 AM	#1
CerealKiller Member Join Date: Dec 2001 Location: Sydney King Posts: 5,826	bah! my $#!7 is leaking! I finally got my act together and set up my system. I've been waiting all along for 1/2" barb for the intake of my Eheim 1250 but then I realised that it can run submersed so that's what I did! Parts: Cyclone 2 w/b / Silverprop BA Rad / Eheim 1250 / re-inforced 1/2" PVC hosing and a shite load of silicone based sealant. / Esky Problem: my set up leaks as soon as I patch up one and let it set, another one decides to leak anyway the real question is what's the proper way to attach a hose to a barb? what i've done is i've put the sealant on the barb (all around it) and put the hose over almost straight away. do i need to let it set? Also I've put metal clamps over the top to make it real tight. I thought that it'd be ok to get away with zip ties but it doesn't work __________________ [ Folding@Home V5 6500 Club Member \| Skylines Australia \| 2 ways to live... ] "God did not send his Son into the world to condemn its people. He sent him to save them! " - John 3:17

7th June 2002, 11:12 AM	#3
CerealKiller Member Join Date: Dec 2001 Location: Sydney King Posts: 5,826	same hose and clamp lol! i've got the clamp on as tight as it can go! hopefully when i test this arvo the sealant has done it's job! __________________ [ Folding@Home V5 6500 Club Member \| Skylines Australia \| 2 ways to live... ] "God did not send his Son into the world to condemn its people. He sent him to save them! " - John 3:17

7th June 2002, 6:39 PM	#4
blackoutmt Member Join Date: Jan 2002 Location: Brisbane, QLD Posts: 315	i use Eheim hose, no leaks at all __________________ yeah h2o club, cool club and what not....

7th June 2002, 7:47 PM	#5
jaani Member Join Date: Jun 2001 Location: Melbourne, Australia Posts: 164	Cathar, how thick are the walls of that hose? Looks pretty thick! How small a circle can you twist it into before it begins to kink? My Tygon is the 1/8" walled stuff, and while it won't kink completely very easily a sharp bend will make the hose begin to flatten somewhat. CerealKiller, did you say you'd put sealant (Silicone?) onto the barb before placing the hose on or afterward? If you've squirted goop on the barb the hose probably isn't forming a tight seal around the barb. Also, are the barbs plastic or brass? You mentioned that the pump is underwater, so are the only places the leaks are coming from the barbs of the radiator and waterblock? __________________ jaani. website. computer.

8th June 2002, 4:11 AM	#7
maxdamage Member Join Date: Mar 2002 Location: Perth, WA Posts: 261	that hose = gay no offence or anything it may look special or different or something but leave it in the garden where it belongs! __________________ where is the love? <Beeth> Girls are like internet domain names, the ones I like are already taken. <Spikey>lol yeah im going to set the alarm to wake me up in the middle of the night to beat off

7th June 2002, 10:28 AM	#2
Cathar Storm Father Join Date: Aug 2001 Location: Melbourne, Australia Posts: 6,508	Are you using this hosing? If so, it needs to be clamped REALLY tight. I use worm-drive hose clamps and screw them down with a fair amount of pressure until the clamps start to visibly bite into the outer shell. I don't use any sealant at all. Make sure you push the hosing on as far as it will go onto any barbs, and clamp very firmly about halfway down the barb length. I'm using this type of hose clamps:

7th June 2002, 7:56 PM	#6
Cathar Storm Father Join Date: Aug 2001 Location: Melbourne, Australia Posts: 6,508	Walls are about 3mm thick, so yeah, pretty chunky. Very hard to make it kink. Down to a 10cm diameter circle it will hold it's shape pretty well. Beyond that it does start to flatten. Down to an 8cm circle the hose will start to flatten out. Down to 6cm it will have flattened quite significantly. Below that it pretty much flattens out, but still never really kinks.

8th June 2002, 4:18 AM	#8
Crash Dummy Member Join Date: Jun 2001 Location: Newcastle, NSW Posts: 1,719	I use simalar hose clamps to those in my system. They're pretty crap in the way they clamp. Around the area where the screw is is a bit of a dead zone. There's usually very little clamping pressure there. Try using a 2nd hose clamp as close to the first as possible with the 2nd clamps dead zone oppisate the the first's clamp's. Put both on real tight and you shouldn't have anymore leaks. I was getting leaks by just using one hose clamp with eheim hose. I was better off using two or none at all. __________________ Click to view my Flickr Photostream Intel Core 2 Duo E5200 2.5Ghz @ 3.66Ghz 333x11\|Gigabyte GA-P35-DS4\|XFX Radeon 4890 1GB Apple Mac Pro 1,1 2.66Ghz\|6GB RAM\|ATI Radeon 4870 512MB

8th June 2002, 11:33 AM	#9
Mred32 Old and Decrepit Join Date: Jul 2001 Location: Perth, South of the River Posts: 4,823	Instead of the silicon goop, use some thread tape (plumbers tape) on the barbs. This is all I ever use except for the hose clamps (and the hose of course). Mred! __________________ I've also eaten lots of brains] Mred32 Home]

8th June 2002, 2:07 PM	#11
maxdamage Member Join Date: Mar 2002 Location: Perth, WA Posts: 261	no that hose is gay its to fat, wont go round bends, likes to be straight in the garden vinyl is better than that stuff if you insist on using that stuff get smaller diameter stuff and heat up the end in hot water and REALLY stretch it over the barbs to make a nice tight seal clamps arent to stop leaks thier to stop the hose being ripped off my rig has ehiem tubing and dosent have any clamps at all....and no leaks ......being running for 3 months now __________________ where is the love? <Beeth> Girls are like internet domain names, the ones I like are already taken. <Spikey>lol yeah im going to set the alarm to wake me up in the middle of the night to beat off

8th June 2002, 2:09 PM	#12
maxdamage Member Join Date: Mar 2002 Location: Perth, WA Posts: 261	also you dont need sealant and dont need pumbers tape stretch the tube over the barb .....like i said above __________________ where is the love? <Beeth> Girls are like internet domain names, the ones I like are already taken. <Spikey>lol yeah im going to set the alarm to wake me up in the middle of the night to beat off

10th June 2002, 2:36 AM	#14
[Q] Awaiting Email Confirmation Join Date: Apr 2002 Location: Brisbane Posts: 120	And if he gets bored he can pull it out and use it in a bong :P

10th June 2002, 5:59 AM	#15
Cathar Storm Father Join Date: Aug 2001 Location: Melbourne, Australia Posts: 6,508	I use said hose but couldn't even be bothered to reply to such a rant. I even switched out my Eheim tubing for it too. The best bit about it is that it likes to bend without kinking, unlike the Eheim which started to collapse on me when used in-line after a while. Eheim is fine as long as you don't attempt to turn tight corners and don't attempt to use it in-line.