PVC Cement and PVC Purple Primer

[hankstanks]

Okay, I am ready to glue all the PVC together for the new system. I have used PVC cement in the past with no problems but have always had a few leaks. Local Harware guy suggested using the Purple Primer first (comes in the same can as the PVC Cement).

Any thing I should worry about with using that stuff?

-Hank

[wharyat]

Nope, perfectly safe (if dry of course).

[Tasher80]

I always use the primer. It drys really fast then you cement the stuff together. Some people use the pvc primer to make white pvc purple so it blends in better in the tank. Its totally reef safe after its dry.

[tims]

just dont smell the botle before you do use it...i heard someone glued the pieces backwords after they did

[offshore]

Originally Posted by hankstanks

Okay, I am ready to glue all the PVC together for the new system. I have used PVC cement in the past with no problems but have always had a few leaks. Local Harware guy suggested using the Purple Primer first (comes in the same can as the PVC Cement).

Any thing I should worry about with using that stuff?

-Hank

The glue and primer both are bad for your liver, I'm surprized you had just a couple leaks, you can put two pieces together with primer only, but the glue without the primer won't take you can pull them apart use the pink primer you can see that you hit every spot on the joint, hold the two pieces together for 30 sec. too, they will want to push apart.

[VWD]

Yes that is the way to do it Use the primer then the glue turn 1/4 turn as You are pushing them together and they will set really fast , You should not have any leaks at the joints .I think the harder joints to seal are the screw type joints , Vince

[tdwyatt]

Primer is just for the plumbing inspector.Chris who???

If you are using clean pipe without burrs on the cuts, and you do the 1/4 turn twist with glue pn both surfacs, your seal will be 100%. Slip joints are long enough that the twist with proper glueing will be more than adequate.

[candian bacon]

i find it helps to dry fit everything together first. then when your sure it all fits the way you want. Mark the pipe and fitting with a china marker using a line. this way when you take everything apart to glue. It will be simple to get it right the first time. good luck

[Loverotties]

Does anybody know if you primer the whole outside to look like algea will it acually grow on it faster then just plain pipe sanded?

[tdwyatt]

I don't see why it would, I would think that just roughing it up would be more appropriate, unless there is something about the adhesive primer filler that makes it more attractive to epilithic crustose Corallinaceae as a generality, I will look at some reference sites to see if this has been reported, although I kind of doubt it.

[yardboy]

Originally Posted by tdwyatt

I would think that just roughing it up would be more appropriate,... that makes it more attractive to epilithic crustose Corallinaceae

You must hang in some rough bars there Tom!
I agree about the purpose of purple primer though. I remember when a hurricane washed away the sink on my neighbors dock. When the water came back on he had a geyser shooting up there. I took a slip ball valve, opened it, spread glue on the joint and jammed it down on the pipe. After letting it "set" for 30 seconds or so, I closed the valve and the joint was still holding 5 years later when I moved away. Now when I tried to rescue a plastic gate valve from an obsolete setup, it would have been nice to see the interface between pipe and valve when I tried grinding it out with a Dremel! That and making "faux" corraline is why I bought my first can of primer last week!