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atomizer bubbles from a diy spray bar

nelson said:
does it have to be ridged black ?.
if not,

http://stores.ebay.co.uk/Clear-Plastic- ... 34.c0.m322

http://stores.ebay.co.uk/Clear-Plastic- ... 34.c0.m322
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Just note that the tube is made from acrylic & is difficult to glue into PVC & PVC is what 99% of fittings are made from.
Fine for spray bars or internal realtors but you need to think hard about using acrylic to build a external reactor.
You can buy clear PVC tube as well but usually only in long expensive lengths!
 
yeah i tried to glue it forgot to mention that it cant easily be used for reactor building, i tried and failed. i think using it as a spray bar at 700mm you should be ok. mine was so long it was hard to support whilst cleaning. was a year old to.
 
Hi guys, Google glueing acrylic and there is tons on it including videos. I appreciate that its not as easy as feeding the fish, but equally it is not difficult, like anything in life you just have to know how to do it, kind regards Colin. :thumbup:
 
Hi Foxfish, try this link,http://www.dymax.com/ they have several products in there range, some I have used with results on up to very high pressures. Camera enclosures made from Poly carb, lexan, and Pu at depths when diving of 90m never leaked yet. have fun Colin.
 
I see, however the point I was trying to make is acrylic tube is not really the best material to mate with PVC for the average DIY reactor build & contributors on this thread should know the potential issues involved.

PVC as a general rule, requires the use of readily available solvent glue to make the pipe fitting joints secure & water tight. This glue however is not recommended for bonding to acrylic.

You can buy PVC clear pipe & IMHO would be a far easier & definitely more suitable purchase than tyring to use specialist clues to achieve what is otherwise a very easy job.

So you are a diver, but not a member of deeper Blue? (I manage the db forum, to be fair, although we now have 24k members - our scuba section has become very quiet over the last few years)
 
Hi Foxfish, yes for sure I agree the the PVC route is from a DIY point of view the easier way. I will pm you on our details in Scotland and if you are ever up my way a dive would be good, kind regards Colin.
 
tried a 22mm pipe tonight with 3mm holes ever 100mm or so. just the 2000lph pump and co2 through it. still the same problem bubbles only coming out of 1 or 2 places. on but instead of farting it squeaks. any thoughts.
 
spraybarsetup.jpg

i hope that makes sense the whole lot is in the tank all just hose clipped together while i play with it. couldn't get a decent photo the spray bar but its just a 1.25" waste pipe with holes. when i tried the 22mm pipe i fitted it straight on the end of the 2nd boyu. maybe i need to try 15mm pipe closer to the pump and boyu ID. the 22 was just laying around in the garage. thanks for the help.
 
Hi danmil3s
I think the problem you have is that your pumping the gas through at too much pressure
The boyus arent like the ups they don't need slot of pressure to drive them they also give larger bubbles
Are the bubbles exiting from the end of the spray bar ? If so the pressure from the pump is pushing the gas to the end of the spray bar before it has a chance to exit along the length as the bubbles are larger try reducing the pressure from your reg u til you have as small a bubbles as pos or get yourself an up atomiser thet give a much finer mist even when driven hard
Matt
 
the pressure @ my reg is only .9 bar the bubbles don't all come out of the end they come out of several places along the bar. it could be to much pressure from the pump i guess' ill try turning it down tonight when i get home. don't really want to buy an up as i keep spending money and getting no where. no sure that would work any way the bubbles the boyu makes are not huge they just join in the spray bar. maybe as a last resort. the more i think about it the more the noise bugs me.
 
ive tried the bubbles straight in to the fx5 but it filled will gas. although i do have a plan i'll split the pump flow in 2 and run a boyu under each power head. should solve my problem. but think that's a project for the weekend. ill let you know how it goes.
 
rated 2000lph is pretty high. i think if i split it under the power heads i should get good distribution and should stop the farting. im starting to get fed up with co2 wish id got t8 lighting.
 
There is obviously something wrong with your whole C02 set up!
There are hundreds of us using spray bars & in line diffusers with no problems!
You just need to use one functional in line diffuser after your external filter going into a 20mm spray bar with 3mm holes drilled every 50mm?
 
ill try what you say foxfish cant afford the up atomizer yet but ill put more holes in the 22mm spray bar see if that helps the noise. ill have a go at splitting it like i mentioned as well. ive got the bits kicking about so wont hurt to try. i just might be trying to force to many bubbles through the spray bar thanks for all your help guys.
 
ok so i went for the cheap hassle free option and imo its worked as ive had to turn the gas down. all i did was drill a 6mm hole at the top of the spray bar then push a bit of 5mm co2 hose in a few mm and fix the other end under the power head (did both power heads). now the gas build of goes straight in to the power heads, bit at a time gets chopped up and blown round the tank. no farting or squeaking hardly makes a noise. so far so good .
 
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