New equipment-help needed please

[fidojoe]

I received my external overflow, and my pump, I decided to upgrade to a viaaqua 3600 instead, but when I put it together, it was way too much flow for my 18g sump, the overflow was noisy as all heck, and the inside of my tank looked like a skimmer from all the microbubbles.

Using a ball valve is my solution to the problem with flow, and that will also help with the microbubbles, but I still can't figure out how to quiet the noise. One thing I think might help, is that when I set it up, I used a coupling to adapt the 2 1" drains down to 3/4", so I can switch that back to 1", but what else can I do?

Thanks

[fidojoe]

1 other ? too, what type of glue/cement should I use to connect the PVC, that I can get from HD/Lowes?

[Barnacle Dave]

Use Oatey "Handy Pack"
Has the Purple primer and PVC cement in it
. This is at Home Depot.

[Barnacle Dave]

This is from a friend of mine named Fletch.

1 1-1/2" to 1" PVC reducer ( if you can get a 2" or 2-1/2" to 1" into your overflow you can use one of them also)

1 1" PVC Pipe cap

And some 1" PVC Pipe ( You will have to measure the depth of your overflow box to determine the length of your stand pipe) You want the BELL of the reducer below the divider in the overflow.

You will also need a drill bit to drill the holes in the stand pipe and one for the vent tube in the pipe cap.

You may also need to ream out the reducer so the stand pipe goes all the way threw it ( some reducers have a ridge in them to stop the pipe from doing just that)

I did not glue anything I just stuck it together and it has been working fine.

[mps9506]

http://www.rl180reef.com/pages/stand...n_stockman.htm
Good ole stockman standpipe, I've been using it for quite a while now.

Regarding the primer/cement combo, if you are clumsy like I am, you might want to consider using the clear primer, I had an accident and poured half a bottle onto my carpet and wall. The purple really stands out.
Mike

[wooddood]

i agree on the purple primer, what a mess and it stains too so be careful with it. use the clear primer.





dave.

[fidojoe]

Whaddabout da blue stuff? Is that ok? I will just do it in my garage where it can go wherever its wants

I godda be real careful, cause I'm already in deep doodoo for draining about 2-3 gallons of FW on the floor from my test run with this thing.

[Reef Geek]

Actuallly I wouldnt even worry about primer. Primer is for constant pressure applications over 60 psi. Glue will work just fine for aquarium uses. Personally I prefer the Clear Low-VOC glue.

[Barnacle Dave]

Originally posted by Reef Geek
Actuallly I wouldnt even worry about primer. Primer is for constant pressure applications over 60 psi. Glue will work just fine for aquarium uses. Personally I prefer the Clear Low-VOC glue.

I disagree the primer also cleans and provides a better surface for the glue to bond to. This makes you connection last longer then the connection that only has glue on it.

Dave

[Bubba654]

what is the output of your return pump. If the flow is to high the overflow will have to match . I may have a solution if this is the case.

[fidojoe]

The overflow is capable of up to 1000gph, and the pump is about 500gph @ the head pressure I have.

[Reef Geek]

Originally posted by Barnacle Dave
I disagree the primer also cleans and provides a better surface for the glue to bond to. This makes you connection last longer then the connection that only has glue on it.

Dave

You are absolutely correct. The primer does clean and "melt" the mating surfaces to provide a better joint for the glue to bond.
In a former life I was a landscape architect. I only used primer on constant pressure applications, valve assemblies and the such where there was a constant 60-80 psi being put on the joints. After the valves and within the sprinkler fields however primer is not necessary.
My point is that I highly doubt our return pumps or CLS are producing anything above even 20 psi within the pipe. A pressure that a glue only joint can handle for years and years on end.

[Barnacle Dave]

Originally posted by Reef Geek
You are absolutely correct. The primer does clean and "melt" the mating surfaces to provide a better joint for the glue to bond.

Yes the better the bonding the better the connection even if not under pressure. Use primer trust me.