COMMUNITY FORUM

vdegrazia

05:02AM | 11/16/04
Member Since: 11/15/04
8 lifetime posts
Bvplumbing
My son just bought a home that is about 5 years old. Somewhere in the sewer vent system there must be a blower. Every now and then I can hear it cycle and can feel the air movement at a pipe extending from the rear of the home. Also, at every P trape there is a small stand pipe with what appears to be a filter at the end.

Can someone explain this system to me and suggest where this blower might be located?

LonnythePlumber

07:47AM | 11/16/04
The filter looking device by the P traps are probably automatic air vents (AAV). This are used in place of a normal vent that goes out the roof. They are controversial because they require maintenance, removal and may have a health impact from sewer gas. Our traditonal plumbing code, the Uniform Plumbing Code, does not allow them. The new International Plumbing Code does not include many of our traditional protections and they have allowed all AAV's except for one real vent and it can go out the side wall of a house.

I am unaware of a blower in a drain-waste and vent system but would like to hear more. Do you only feel air coming out of the side pipe when you hear the noise? Is there a sewage ejector in the basement? Is the sump pump tied into the drainage system?

vdegrazia

08:21AM | 11/16/04
Member Since: 11/15/04
8 lifetime posts
Lonny: Thanks for the reply. What type of maintance do the AAC's require? From what I have subsequently read all they appear to be is a check valve and at most need to be replaced if they begin to stick.

Relative to the blower. What is a sewage ejector? As far as I can tell the sump pump is only for the surface water.

There is what looks like one sewer vent stack coming through the roof, if that means anything

LonnythePlumber

09:34AM | 11/16/04
The maintenance is just to check to see if they are still operating correctly. Replacing them, not repairing, is the cure. A sewage ejector if a basin and pump system that pumps the sewage up to the house drain pipe if there is not underfloor drainage. Sump pumps are only for surface water but sometimes they wrongly get connected to the sanitary drainage system. Does yours go out separate? There should be one regular vent to the exterior. What is the pipe going out the side wall? Could it be your furnace vent?

If you have plastic piping coming off your furnace then it has a blower. This is not connected to the drainage system.

vdegrazia

10:50AM | 11/16/04
Member Since: 11/15/04
8 lifetime posts
Lonny: The house does not have a sewer ejector system.

I have double checked the pipe exiting at the rear of the house. It definitely goes to the drain system. The furnance pips are a long way from this ine.

LonnythePlumber

12:40PM | 11/16/04
What is on the other side of this wall? If it's a kitchen sink then it is possible you have an outside cleanout for it. Do you see threads? Is there a 90 on it or a screen? How far up from the ground? What size and kind of pipe? Is it 2" plastic? If you have a rectriangular metal piece it may be a dryer or bathroom vent. Are you on a sewer system or septic?

Try to identify sound location and frequency. What a mystery.
Click_to_reply_button
Inspiration_banner

INSPIRATION GALLERY



Post a reply as Anonymous

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

Reply_choose_button

Anonymous

Post_new_button or Login_button
Register

Let it snow by stringing your tree with sparkly snowflakes — the kind that will never melt. LEDs on string lights burn mu... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... The Audubon Society inspired wallpaper in this Adirondack-styled entryway will get you in the outdoor mood. Grab your coat... Chalkboard paint opens up endless possibilities for customizing your dresser time and time again. Use chalk to label the c... A fireplace in the bathroom creates the ultimate setting for relaxation. Homeowners often choose electric or gas over wood... This roomy boot tray made from punched metal stands up to all the elements. Station it in your mudroom or at your back doo... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... FLOR carpet tiles are a simple and affordable way to customize a floor covering for any space. You can make anything from ... Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... The indecisive homeowner need not fret over choosing one (or even two) cabinet colors. The kitchen cabinets in this artist... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... First dress up your metal shelves with a coat of paint in an accent color that complements your kitchen decor. Then arrang... The vibrant green of Granny Smith apples make a beautifully natural alternative to the traditional evergreen wreath. Brigh...
Follow_banner_a
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon