We always recommend that you refer to the refrigerator manufacture instructions to ensure they do not have specific guidelines for installation. Since there are no drain connections necessary for the IMOB, Oatey IMOBs are designed for any elevation installation. 

We always recommend that you refer to the washer manufacture instructions to ensure they do not have specific guidelines for finished drain elevations. The maximum height of the WMOB would be determined by the washer manufacture, accessories such as pedestals, and local plumbing codes.  Oatey recommends the maximum elevation of the inside bottom of the WMOB is 48” above finished floor. The minimum elevation of the inside bottom of WMOB is 34” above finished floor, this is the same height as the flood level rim of a laundry sink with or without a cabinet. 

Washing machine outlet boxes and ice maker outlet boxes are made of a High Impact Polystyrene. The WMOBs can be solvent welded to ABS or PVC drain pipes. Use ABS cements for ABS drain pipe connections and PVC cements for PVC drain pipe connections. Where building officials approve, Oatey ABS to PVC Green Transition cement can be used for either drain pipe material connection to WMOB.

There are two ways to complete this application. The first is to use one of the 
approved adhesives from Liquid Nail product line; apply this product with a 1/8" trowel up the front, back and top surfaces of the curb. Then press the liner down to conform to the curb shape, and finally nailing the liner at the top edges and on the outside curb surface.  The second method is to cover (wrap) all three sides of the curb with a cut (scrap) piece of liner and nail it into place, these nails can be located anywhere because they will be covered by the second (finished) piece of pan liner. All the nails must be flush or recessed into scrap piece of liner, without any sharp edges exposed. Then after cutting your finished liner to size and reaching the curb wrapping step, apply the appropriate solvent cement for that material and cement the finished liner to the scrap liner.

Whenever possible you should purchase a piece of shower liner from a roll which all 
the Home and Garden stores stock. However; if you do get a piece that has a crease in it, lay it on a flat surface in the sun or heat with a hair dryer. Then lay a flat heavy object on top of the crease for 30 minutes. This step may have to be repeated a few times in order to create new material memory. If the creases are too large, DO NOT install the liner. Large creases left in the liner will cause water to puddle under the concrete which could affect the integrity of the cement base, or mold growth which will transfer up through the grout joints. The pan liner must be self-draining. 

If you contact our customer service department, they would be happy to send you a full set of step by step installation instructions. You can also visit our website and watch our how-to video showing a shower pan installation.    

You cannot use any tar paper when installing the shower pan liner because the 
petroleum in the tar paper will dry the liner, and the liner will become brittle and crack if there is prolonged exposure. 

Yes. Only CPE liner is approved for this application because of its ability to withstand 
high heat.

No. The formulas are very different and cannot be interchanged.

The approved products for this application are bagged Portland Sand mix, or cement 
mix for the base and top coatings. If you are going to mix and match, you must use Portland sand mix under the liner.