Originally Posted by
vertical grimmace
You mean the stoppers that come with your ARF? The stoppers I have seen fail were purchased from Dubro and Sullivan. Are they being made in China now? A screw on cap has no failure point, and allows easy access for maintenance when the time comes, instead of having to replace with another stopper. To each their own, but the screw on cap style of tank is a no brainer of simplicity, and ease. Not to mention it will never fail.
The first gasoline tank I purchased was a Dubro, 6 years ago, when I first came back to gas (I dabbled some 15 years ago but quickly sold the IMAC plane, just too big). The stopper that came stock simply was not right....didn't fit right. The tank leaked.
That's when I started to use Fiji water bottles, certain types of square juice bottles or Dasani round bottles. I also sourced square bottles from USPlastics except the US Plastics caps did not have the special lip seal. I used teflon to seal these.
The Dasani and Fiji bottles and certain types of juice bottles have a cap with a special lip seal molded in from the same plastic as the cap. It seals great. These bottles are rated for upwards of 50 psi so they are safer than nearly every other tank we can purchase. These polyester tanks are all I use nowadays, coupled with the plastic fittings I have sourced. Fittings are for sale but please contact me directly at my emails addy.
Hey, BTW, Dasani round bottles come in 8.5, 11.8, 17, 25, 33 ozs. The 8.5oz is perfect for the 10cc and 15 cc engines. The 330ml (11.8 oz) is perfect for the 30cc class engines. All of these are strong and super light