Stand for sump
- Thread starter Dace
- Start date
- Location
- NY
What in gods name are you trying to support? I build with what most people would call overkill. That is ridiculous........unless you plan to support the pacific rim :banghead:
swimmer
swimmer
- Location
- Westbury L.i
hahaha.....wow ...that is one diesel sump stand......u will never have to worry if its strong enough...sleep well
OctaviousMonk
Sucka Free Reefin' !!!
- Location
- Westwood, NJ
Hardcore and built to last, I like it.
- Location
- Wallingford, CT
Hey Dave,
I once read that we shouldn't use pressure treated wood for stands. Don't remember why though, am sure someone will.
I once read that we shouldn't use pressure treated wood for stands. Don't remember why though, am sure someone will.
- Location
- NY
Pressure Treated (PT) lumber is made weather resistant by infusing Copper Chromium Arsenate (CCA) into the wood under pressure. If you get a splinter of PT lumber into your skin, there is a high incidence of infection. Needless to say the treatment with a copper based chemical (or arsenic for that matter) is not good for our reefs either. However, the PT lumber is not submerged into our systems. How is the CCA supposed to get from the lumber into our systems? I will say, that I've seen some PT lumber 'ooze' when nails are driven into them. That oozing would surely contain all three parts of the CCA. So if you are using PT lumber on the portions of your stand directly above the tank where a drip could fall into it, then I'd say yes, there is a chance of contaminating the system.
swimmer
Umm, hate to agree with Warren, but I recall that it shouldn't be used indoors due to the arsenic in it..
here is a link to the info that should be provided where you purchase CCA
http://www.ccasafetyinfo.com/
I found lots of info on it when I googled dangers of CCA...
Sorry..:frown:
here is a link to the info that should be provided where you purchase CCA
http://www.ccasafetyinfo.com/
I found lots of info on it when I googled dangers of CCA...
Sorry..:frown:
Last edited:
- Location
- NY
One of the reasons using it indoors is dangerous is because of the risk to homeowners and firefighters if there is, god forbid, a fire. CCA is a known carcinogen. One of the ways for it to be dangerous to us is to breath in the fumes when burning.
Almost ALL single family homes built in the last 40 years have PT lumber used in them. It is used as a sill plate. Building code actually required the use of PT lumber on any portion of the home that came in contact with concrete. Since concrete is so porous and wicks water from the ground, it only made sense to protect the first 'layer' that connects the house to the foundation from rot with PT boards.
I agree Russ, but those sill plates aren't in areas easy to touch/reach..but David has kids..and kids put their hands in their mouths.
Add that to your point about nails & oozing. Not sure what the white stuff is that is frequently seen on CCA but I wouldn't want any of that falling off and into my tank.
Add that to your point about nails & oozing. Not sure what the white stuff is that is frequently seen on CCA but I wouldn't want any of that falling off and into my tank.
- Location
- NY
Sill plates are only one area of a home where PT is used. Kathy, take a look at your new hood in your thread. It appears from a cursory glance that your deck (and millions of others) is made with PT lumber. Do you ever walk barefoot on your deck?
- Location
- NY
Dave, sorry for the hijack, but with all your pressure treated lumber it gave cause for concern. This conversation might prove useful. If not, please have the mods delete my posts. Again, sorry for the 'jack.
Russ
Russ
Russ, it's not a problem, the reason i went with this wood was because i was told it was good against water as i never used this before i had no idea it could cause a problem. Now i'm pretty concerned.. I also explained to the person where i bought the wood what i was going to use it for and they claimed it was just fine. Stupid me, should of asked around. The stand will have a 1/2 layer of plywood and a layer of styrofoam. Do you Guy and Girls think i should scratch it and start all over.....
- Location
- NY
No need to start over. As long as you're going to 'skin' it over you should be fine. Take note of where you've got your nails driven in. Do you see any liquid oozing out? This is the area that you'd have problems.
People/builders have been using PT lumber for 40 years. There are plans to change the future use of it. Dave, my biggest concern is the lumber you chose, looks VERY wet. I can tell from the pix that each piece weighed about a ton. When PT lumber is that wet, it can mean it was infused with a lot of CCA and it hasn't dried, or, it was just left out in the lumber yard and, well, got wet. :biggrin:
Either way, wash your hands after touching that wood. Be careful of splinters. Don't let your kids touch the PT lumber. Be cautious of any dripping that might seep out of the wood itself.
Also, when talking about being overbuilt, all future reference on my part will be directed at your new stand
swimmer
People/builders have been using PT lumber for 40 years. There are plans to change the future use of it. Dave, my biggest concern is the lumber you chose, looks VERY wet. I can tell from the pix that each piece weighed about a ton. When PT lumber is that wet, it can mean it was infused with a lot of CCA and it hasn't dried, or, it was just left out in the lumber yard and, well, got wet. :biggrin:
Either way, wash your hands after touching that wood. Be careful of splinters. Don't let your kids touch the PT lumber. Be cautious of any dripping that might seep out of the wood itself.
Also, when talking about being overbuilt, all future reference on my part will be directed at your new stand
swimmer
Is the sump on top or below the stand? I would leave it be if it is on top with a 3/4 plywood as the base.
Russ's info is 100% correct and using PT lumber in a fish tank stand is really unnecessary.
BTW, looks like someone cut one of the verticle pieces too short :lol2:.
Russ's info is 100% correct and using PT lumber in a fish tank stand is really unnecessary.
BTW, looks like someone cut one of the verticle pieces too short :lol2:.
Pierce, the sump will be on the top so i guess it will stay the way it is. as for the vertical being short, damn you are the man. I precut the whole thing. i was pretty happy how everything was cut great til the end where i was checking the the vertical and yes they were the only thing that was short.
:thrash::thrash::thrash:
:thrash::thrash::thrash:
I may be completely off target here, but wouldnt painting it help to decrease the amount of risk someone or something would have upon making contact with it? I mean, if you put several coats of paint or polyurethane type sealant on it, wouldnt that aid in less splintering of the wood, and help prevent any types of chemical leakage? Like I said, I may be way off on this one, but could it really hurt to consider that?
- Location
- Wallingford, CT
And all I was getting at was the swelling & contracting of PT lumber :lol:
- Location
- NY
Baaah, you're just an instigator. :hug:
- Location
- NY
Couldn't hurt. But wouldn't help much. Polyurethane wouldn't take too well to it. Paint would work better, but CCA could still bleed through it. But like I said, couldn't hurt.
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