The most recent edition of NFPA 1901 requires that a mobile water supply apparatus (tanker or tender) must be able to offload (dump) from the left, right, and rear of the vehicle at a rate of at least 1,000 gpm. The A.H. Stock Company's swiveling dump chute meets that requirement. The Stock Co is best known for their Newton Kwik Dump - a mainstay in the tanker business for many years. The swiveling dump chute has been available for a number of years now - we just haven't been able to catch one in operation.
During our seminar in Ottawa, Kansas, we found the Newton 6000SW dump chute on L.O.H Fire District's Tender 3661 and thought we would share some photos of the chute in operation. The chute can offload at rates approaching 2,000 gpm on larger tankers - very impressive.
Tender 3661 is a 4,000-gallon tender built by Osco Tank & Truck and operated by the L.O.H Fire District in Ottawa, Kansas. The tender is built to simply haul water - and that it does quite well!
The Newton swivel chute used in the rear dump position.
This valve and chute can off-load at rates approaching or in excess of 2,000 gpm.
An important point concerning installation is making sure that the bottom of the chute will clear the frame of the dump tank.
