Abstract: A self-watering planter features wicking devices whose outer tubes feature a skeletal upper structure having a plurality of columns periodically interconnected by rings spanning circumferentially around the wicking material to delimit windows of large area for optimum water seepage to the soil. A flange at the bottom of the tube's skeletal upper portion cooperates with snap features at the top of a lower portion that hangs in the water reservoir to provide snap-fit installation of the wicking devices on a divider wall of a permanently enclosed planter. A soil drainage filtration device features filtration fabric held in a sandwiched state around a drainage opening in the divider wall by one or more mounting plates. In one embodiment, the fabric forms a sack that hangs into the reservoir to suspend a volume of soil therein, whereby the suspended soil serves as wicking agent in the absence of excess rainwater needing drainage.

Abstract: A towed vehicle is towed behind such recreational off-road vehicles as snowmobiles and all terrain vehicles (ATV's). The vehicle has a body that is rotationally molded of low density polyethylene. It has an outer shell mounted on a vehicle frame and an inner shell suspended on the inside of the outer shell. The outer shell peripheral wall is formed to provide some resiliency to cushion the inner shell. The suspension of the vehicle includes a trailing arm and a one-quarter elliptical spring biasing the trailing arm away from the vehicle.

Abstract: A one-piece or sectional access sleeve for septic tanks is rotationally moulded as a single tube with covers formed at one or both ends. These covers are parted-off and trimmed and engage the upper open end of the sleeve in sealed, twist-locking relationship. In the sectional sleeve, portions or sections can be parted off at specific locations along the length thereof and can either receive covers as mentioned above or can be engaged upon the upper end of another section and twist-locked into sealing relationship so that the necessary length of access sleeve is easily assembled for field attachment and access to the tank, from the surface, regardless of the depth of the tank below the ground surface.