The Model 216 dosing siphon from Fluid Dynamic Siphons can be installed in an Infiltrator Systems IM 540 tank to create a transportable siphon-dosing tank. The siphon has a 2-inch-diameter trap and has a 16-inch drawdown, allowing the outlet of the siphon to fit through a rib of the tank. A 2-inch bulkhead fitting is installed in the tank through one of the ribs, about 13 inches on center from the bottom of the tank. A short section of 10-inch-diameter PVC pipe is then set in the bottom of the tank. The siphon trap is placed into the 10-inch pipe and the outlet of the siphon is plumbed into the bulkhead fitting. A small batch of concrete is prepared and poured into the 10-inch pipe, around the siphon trap to create mass to prevent the siphon from floating and to further secure the siphon to the dosing tank. Two-inch siphons with 7- or 12-inch drawdowns to provide smaller doses are available. 800/888-5653; www.siphons.com.