First Time need help with pipe

[spudoomatic]

hi i was wondering im building a spud gun for the first time and everything was going good until i noticed i got the thick wall pipe but its the kind that filled in the middle and it says on it vent and waste only will this be strong enough to hold the blast??

[spudshot]

hmm, if its cellular core i wouldnt trust it, but if its got a pressure rating on it, its fine, you may have pressure rated pipe, and you just ended up with a section that didnt have the rating on it, OR you have cellular core pipe. really, if i were you i'd scrap it and build it again, you're only gonna be out about 20-30 bucks compared to a few hundred for a trip to the ER if the damned thing blows on you

[saladtossser]

congrats on the desicision of building a spudgun, it has been said that it is ok if it is drain waste vent, but only for a combustion.