All-Glass Aquariums MegaFlow Overflow Accessory Kit
Check to make sure that all parts are included in the kit before you begin.
1 - 1" Bulkhead assembly (includes: bulkhead, washer, and nut)
1 - 1" Insert
1 - Adjustable drainpipe
1 - Air intake elbow
1 - 90° Elbow
1 - Strainer
1 - 3/4" Bulkhead assembly (includes: bulkhead, washer, and nut)
1 - 3/4" Insert
1 - Return pipe
1 - 3/4" Elbow
1 - Nozzle
*Additional items needed: PVC primer, PVC cement, and PVC pipe cutter.
- Wet the bulkhead seals. Insert "bulkheads with bulkhead seal" into the predrilled holes from the inside of the aquarium, for each hole. The seal must be placed between the bottom of the bulkhead top and the inner bottom glass. To ensure a proper seal, the inner bottom surface must be cleaned of any debris.
- Fit "bulkhead nuts" to "bulkheads" from the underside of the aquarium. Hand-tighten until nut is properly secured. DO NOT over tighten. To reduce the risk of damaging the bulkhead assemblies or breaking the aquarium, the use of tools is not recommended.
- Depending on the height of your aquarium, the "drain pipe" will need to be adjusted (DO NOT cut to length). To adjust your drainpipe, simply submerge pipe assembly in water. Once the pipe assembly is wet, adjust to correct length. The "return pipe" may also need to be sized. Cut return pipe to correct length.
- For 110X, 150, and 210 aquariums: Return pipe length is 26-3/4" long (supplied length).
- For 65, 90, 92 corner, 120, 155 bow, and 180 aquariums: Cut return pipe to 22-3/4" long.
- For 54 corner, 72 bow, and 125 aquariums: Cut return pipe to 20-3/4" long.
- For 55 and 75 aquariums: Cut return pipe to 18-3/4".
- Screw the "nozzle" into the "3/4" elbow." Press fit the opposite side of the "elbow" to one end of the "return line." Press fit the remaining end of the "return pipe" into the "3/4" bulkhead." Already mounted in the aquarium. *NOTE: The small hole in the "3/4" elbow" is an anti-siphon feature in the even of a power outage and must remain open.
- The drainpipe assembly is NOT to be permanently bonded together. This is for easy access and cleaning of the drainpipe components. Assemble the "strainer," the 90° "elbow," and the "air intake elbow" by snapping them together. The elbow assembly and the "drain pipe base" then get press fir to the "Adjustable drainpipe." The entire drain assembly then gets press fir into the "1" bulkhead" already mounted in the aquarium.
- If hoses are going to be used to connect the filtration system, the inserts will be needed. If inserts are not needed, skip this step. If inserts are needed, apply PVC primer and cement to the 3/4" insert and insert the 3/4" bulkhead already mounted in aquarium. Repeat for the 1" insert.
- The assembly and installation is now complete for the All-Glass Aquarium Overflow System.
Recommended Drain Pipe Adjustment
- Remove cap. Cap removal will allow you to grip more area of inner pipe for adjustment.
- Add a small amount of water between inner and outer pipe to act as a lubricant. Water will assist inner pipe movement.
- To adjust, twist inner pipe clockwise band counterclockwise intermittently, while pulling. This should be a one-time adjustment for each tank height.
- Replace Cap
NOTE: DO NOT add silicone-based products to assist in adjustment. It is important that the inner tube and the outer tube remain as tight as possible. Use water only as a lubricant.