01:09AM | 03/15/07
Member Since: 03/11/07
1 lifetime posts
Someone told me there is a way to mount a check valve or some sort of replacement for the traditional air gap kit that is used with dishwashers. This prevents backflow and normally mounts on the kitchen sink, but I like the suggestion of not mounting it there.

Is there such a thing/device/item? If so, what is it called and where might one find it?



12:13PM | 03/15/07
Member Since: 01/24/06
1449 lifetime posts

A check valve is NOT considered a back flow preventer because a "check" is not a positive shut off.

They are prone to failure and can cause a lot of noise through a plumbing system.

Air gaps and air breaks are in the model codes for a very valid reason and many dishwashers already have a built in air gap as people hate seeing them installed through a counter top


06:35AM | 03/16/07
Member Since: 04/25/05
1918 lifetime posts
IIRC some codes don't require an air gap, other means can be used.

The classically way is to loop the drain line up so that the it is against the bottom of the counter top.

Then water can't backup into the DW until the water in the sink is about 1" from overflowing.


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

A simple banquette piled with pillows and lit from above with a wall sconce is a tempting spot to curl up with a favorite ... Built on a rocky island in the Drina River, near the town of Bajina Basta, Serbia, this wooden house was cobbled together ... Large steel-framed windows flood the interior of this remodeled Michigan barn with daylight. The owners hired Northworks A... Edging formed with upside-down wine bottles is a refreshing change. Cleverly and artistically involving recycled materials... A Washington State couple called on BC&J Architects to transform their 400-square-foot boathouse into a hub for family bea... Similar to the elevated utensil concept, hanging your pots and pans from a ceiling-mounted rack keeps them nearby and easy... For windows, doors, and mirrors that could use a little definition, the Naples Etched Glass Border adds a decorative flora... The thyme growing between these stepping stones adds a heady fragrance to strolls along this lush, low-maintenance garden ... Decoupage is an easy way to add any paper design to your switch plate, whether it is wallpaper, scrapbook paper, book page... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Reluctant to throw away any of those unidentified keys in your junk drawer? Hang them from a few chains attached to a simp... A stripped-down model, sans screened porch, starts out at $79,000. Add the porch, a heated floor for the bath, and all the... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon