Brass all thread

Hi Richard,

Why not?

I don't have a swimming pool but would like to log it for future reference.

Dave

Corrosion. Better not to have it come apart in the wee hours.

Even more miserable if you are paying an hourly rate to the guy that hast to get it apert, a few years down the road.

Cheers Trevor Jones

My local Lowe's carries stainless. [which is what i would use on a pool- I think the chlorine eats brass] I found out when I grabbed a couple pieces of threaded rod and nearly had a heart-attack when the girl rang it up.

The brass is only $7 at mcmaster.com - If you're stuck on brass they might be your best bet. [I usually find it quicker to order from them than wait until I remember to pick up something while I'm out.]

Jim

I am having trouble finding this. I need 1/4 - 20 in two 24" lengths. I may have to bite the bullet and get it online if I can't find it locally. Any ideas to what sort of business may have this? It's for a pool filter, and when I ask, a glazed look comes over their eyes.

Steve

Pool water will slowly dissolve brass, so it won't last mechanically. Whatever chemistry you use to sanitize your pool makes this inevitable.

Dissolved metals in pool water redeposit on the pool surfaces and stain them.

You might also consider why metal pool fixtures are always stainless, not brass or zinc like freshwater boat hardware.

Even tap water damages brass, by slowly leaching out the zinc. You don't see it because the copper holds its original shape. That's why old faucet washer screws break so easily.

Jim Wilkins

You mean cheap bass boat hardware?

Everything on my boat is stainless.

Richard

The all thread holds the plastic DE filter assembly together. I have used shorter sections of brass with aluminum and steel joiners, but they corrode into unrecognizable blobs in one season. The brass is unchanged. Why not use brass? I'm not making a brass float or anything that big.

Steve

----- Original Message ----- From: "Trevor Jones" Newsgroups: rec.crafts.metalworking Sent: Monday, February 18, 2008 5:12 PM Subject: Re: Brass all thread

apparently chlorine eats stainless too. i had to replace a stainless rod (maybe 1/2" by 10") in my pool filter. it had holes through it like swiss cheese. was amazing to look at. (i figured the holey parts were where there had been some contamination in the process of making the stainless.) (but i'm sure stainless lasts longer than brass.)

b.w.

Bronze ? - Si-Bronze ?

Plastic ? Mart> I am having trouble finding this. I need 1/4 - 20 in two 24" lengths. I

The Chlorine dissolves the Zinc and then the left over copper is spongy. Spongy copper falls apart.

Think sinks that were brass - the brass stems that held the washer often fractured and cracked and was replaced. The seats were replaceable.

Nowadays the new fangled sinks don't have washers. Such an easy life.

Mart> Hi Richard,

I have some bronze portholes that were in tropical water for 50 years. There is very nominal spotting of green in places. More coral than green. They are Naval Bronze. A Very special alloy. Martin

Mart> Richard J K>>

If you use stainless, make very sure you use anti seize. Stainless can be vicious about galling.

Now you got me going. I live in Utah. This is for a pool in Las Vegas. If I was there, I'd braze the four rods into two two foot long rods. Now, I may have to buy some here, braze them together and take them there. During disassembly for five years now, I have only had a problem with the couplers, not the nuts. They spin right on and off easily. Must be some special kind of brass. Will let you know how this R&R goes in a few weeks when I do the yearly DE filter disassembly, clean and recharge.

Steve

Don't forget that "stainless" refers to a family of alloys, the characteristics of which vary rather widely. You need to choose the proper one for your application. Whether what you need is available as a threaded rod is, however, another matter...

Jerry

One of the reasons I want to stay with brass. Even with the couplers corroding, just some brushing cleans out the threads. Would be nice to find two of the right length, or go get two and braze together. Will go to the welding store tomorrow. Might even be able to cut some short pieces of 4" or so and then braze them on the ends of plain brass rod to have just enough threads for the nuts and washers to hold it all together.

There's a hundred ways to cook a poodle.

But it all tastes like chicken.

Steve

I bought a few pieces of the largest size available of gas/TIG welding rod in steel, aluminum, brass and stainless, for a whole lot less than it costs in a hardware store. If you know the length, buy some 316 rod and thread the ends. It should last until crushed by the next ice age.

Jim Wilkins

Try Bronze (even harder to find); it has passes the 2000 year immersion in salt water test ;)

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