Can a Different Tank Be Used on a Gerber Toilet?

About Gerber Toilets

• Since 1932, Gerber has been manufacturing toilets for both home and residential use. Their line of toilets spans across several model styles and includes both elongated and round front toilets. Gerber also produces a line of water conserving, green toilets and toilets that are fully compliant with the Americans with Disabilities Act. The majority of Gerber toilets are a two-piece construction, meaning that a tank mounted to the rear of the toilet bowl provides water for flushing.

Toilet Tank Operation

• The tank in a two-piece toilet provides water for the flushing cycle. A water supply hose connected to the water supply brings water in from the location supply to the fill valve inside the tank. A float attached to the fill valve floats upward as the water level inside rises. When the float reaches a set level, it cuts off the fill valve. Water leaves the tank through the flapper valve mounted in the bottom of the toilet. The handle on the exterior of the tank connects to the flapper valve through a rod and chain assembly. After a flush, the flapper closes to allow the tank to fill.

Tank Interoperability

• The major factor that determines whether a different tank can be used on a Gerber toilet is the number and placement of the bolt holes on the bottom of the tank. Most Gerber toilet tanks will use a two bolt placement, although some models may have three. Measure the distance between the bolt holes in the bottom of the tank and compare them with the Gerber bolt holes on the bowl to see if the measurements are compatible. You can also set the replacement tank over the rear of the Gerber bowl to see if it fits. The bolt holes, along with the flush valve opening, must line up correctly in order to use a different tank with the Gerber toilet.

Installing a Different Tank

• Install a replacement tank for your Gerber by setting the tank on the back of the bowl. Insert the tank bolts through the holes in the bottom of the tank so the threads poke out beneath. Slip the washers and nuts onto the threads at the bottom and tighten. Don't overtighten, as this could cause the porcelain to crack. Wrap plumber's tape around the inlet valve underneath the tank and the water supply valve threads for the toilet. Connect the smaller end of a water supply hose coupling to the supply valve and the wider end to the fill valve inlet threads. Turn on the water supply valve by turning it to the left. After the tank fills, flush and check the base and tank area for leaks. Tighten any couplings or bolts, if necessary.