Hayward Bulkheads

[tbone28]

I'll be using hayward bulkheads for my tank.

1) Where's the best place to buy them

2) What is the difference in a PVC, CPVC, and PPL bulkhead? Which material is recommended?

3) For the seals, what's the difference between an EPDM and FPM?

4) For the end connection, which would you choose:

Socket x Thread, Thread x Thread
Socket x Thread
Thread x Thread

http://haywardindustrial.com/html/p...DID=2&ProdID=26

Thanks

 

[Acrylics]

Not sure where to buy them in your area, but you can get them online at Aquatic Ecosystems, not terrible pricing

Just get the PVC, no need for CPVC or polypro, can't glue the polypro anyway and threads are not as smooth IME.

EPDM gaskets are fine, don't pay for what you don't need and won't benefit you.

Haywards are only (commonly) available in SxT and TxT, the socket option being the flange side. The use of either one is a preference thing depending on application. Eg., if using Loc-Line or threaded filter screens in your tank, get the TxT. If you are using it for overflow standpipes - get the SxT. The body or tailstock (nut side) will, as a standard, always be threaded.

HTH,
James

 

[tbone28]

Thanks. That helps a lot!!

Four of the bulkheads will be inside my overflow box - (2) each for the drains and returns. Sounds like I'll be doing for the S x T? I'll be buying the "CJ Standipes" for my drains. Are the S xT ones compatible?

I also need one bulkhead for my sump's external return pump. Are the Haywards the way to go? Or overkill? I'll be using a Velocity T4 as my return pump. Should I go S x T for that one?

 

[Acrylics]

S x T for the overflow drains sounds right, it's what most folks use. I don't know what the "CJ Standpipe" is so can't comment, but if the pipe is standard 1.5" pipe then yep - will fit right in.

I always use Hayward (or Spears) bulkheads everywhere a bulkhead is called for, regardless of how "overkill" it may seem at the time. I likey overkill

If you are placing a filter screen on the bulkhead for the return pump, the T x T might be beneficial, if no screen then S x T would be the ticket.

HTH,
James

 

[tbone28]

James,

Yes, you are very helpful! Here's a link to the CJ standpipes:

http://www.nautilusreef.com/html/cjstandpipes.html

Basically, another method to silence the overflow.

My returns will be inside the overflow box. Would the S x T bulkheads be my answer there as well?

For my sump return, I don't plan on placing a filter screen. But I do plan on adding a 90-degree elbow )inside the sump)like this:



This way, the pump won't suck air. It'll keep sucking water from the bottom 1" of the sump.

I'm guessing I'd need an S x T bulkhead to fit my 90-degree?

Thanks

 

[Acrylics]

Thanks for the link.

For the sump return, you could use either really but the S x T bulkheads are a coupla bux cheaper and the T x T would provide no benefit for this application over the S x T so yep - save the $$ and use the S x T.

HTH,
James

 

[tbone28]

Thanks again, James. You're certainly clearing up my muddied water!

So I have a follow-up question. I'll use a 1" SxT hayward BH in my sump. I'm going to connect a Savko TUBV to this, and then my return pump (Velocity T4):

http://www.bluelineaquatics.com/products/water_pump/velocity.html

The T4 has a 1" "barb" inlet, which I think takes vinyl tubing.

Regarding the Savko TUBV, do I get the "slip" or "threaded"?

And how do I go about plumbing the TUBV to the pump?

The T4 has a 1" barb outlet as well. How do I plumb this to my Hayward (SxT) return bulkhead?

Thanks

 

[Acrylics]

I guess you're gonna have to put a barb fittings on the bulkhead and TUBV then connect with hoses.
Personally, I'd use a different pump, not that I have anything against the pump itself - just that it's kinda dumb to build a pump that way IMO. There are plenty of other pumps that don't force this on ya.
I may be incorrect, but checking the specs on the pump - it appears that this is not a pressure rated pump and shouldn't be valved back. Use this pump as a recirc (closed loop) pump and use something else as a sump return.

JMO
James

 

[tbone28]

<a href=showthread.php?s=&postid=10019724#post10019724 target=_blank>Originally posted</a> by Acrylics
I guess you're gonna have to put a barb fittings on the bulkhead and TUBV then connect with hoses.
Personally, I'd use a different pump, not that I have anything against the pump itself - just that it's kinda dumb to build a pump that way IMO. There are plenty of other pumps that don't force this on ya.
I may be incorrect, but checking the specs on the pump - it appears that this is not a pressure rated pump and shouldn't be valved back. Use this pump as a recirc (closed loop) pump and use something else as a sump return.

JMO
James

Hi James,

I welcome any opinions! My sump is in the stand, and so my return plumbing will rise about 5 feet. I plan on running it with the TUBV wide open. Running it "wide open" will give me close to 7x turnover through my sump (this doesn't account for sump volume or head loss, so I'll probably be closer to 6x turnover)I used 2 of these T4's on my last tank (a 240g), and liked them, but am open to new options.

I mainly like them because they're quiet. The tank will be going in the family room/kitchen area so minimizing noise high up on my list. I also like them because I can use them as a heater. I'm not doing metal halides this time - T5's only - so I could use the free heat.

What are your thoughts on the T3? It's pressure-rated, and has threaded inlets/outlets. However, the ins/outs are 3/4". I'd like my return piping to be 1". Does that complicate the plumbing? Also, the T3 is rated at 800gph, which will give me about 4x turnover through the sump. Is that enough? I know there are different thoughts regarding low flow vs. high flow through the sump.

What pumps would you recommend that are super quiet, have a 1" inlet/outlet that are threaded, and are reliable?

Thanks!

 

[Acrylics]

I've never used any of the T-series pumps so can't comment on them. I had good experiences with the "Quiet One" pumps which were very quiet but I hear others' experiences didn't go so well. People's opinions vary widely on sump turnover and really not my area of expertise. Mine would just be an uneducated opinion, which would be yes - 4x is fine but inherently debateable.

I haven't bought a new pump in prolly 5yrs so don't know much about any of the newer pumps. I stand by old reliable pumps and don't worry about a few decibels here or there (I have hearing problems anyway). Iwaki has always been my favorite but that's just me so I'd prolly use an Iwaki 55 but may be too loud for you. Might try asking about them in GD.

James