How do I know what size to order? The sizing is confusing..
Measure your roof vent pipe's outside diameter to see which size OdorHog filter you need. Vent Pipe Manufacturers size their pipe by the Inside Diameter. Because OdorHogs fit over the outside top of your vent pipe, we care what the outside diameter is. This tells us whether you have a standard thickness of pipe and your OdorHog will fit properly.
1.9" outside diameter, order the 1.5" OdorHog filter.
2.375" outside diameter, order the 2" OdorHog filter.
3.5" outside diameter, order the 3" OdorHog filter.
4.5" outside diameter, order the 4" OdorHog filter.
6.625" outside diameter, order the 6" OdorHog filter.
I have an odor in my bathroom or laundry room drain, will an OdorHog work for me?
No, an OdorHog will not work on inside plumbing odors. By installing a filter on your vent pipe when you have an inside odor, it will force the sewer gas to backup inside your home. It's like putting a cork in your vent pipe and backing up all the odors into your home. We recommend you call a Master Plumber. Do not call OdorHog. An OdorHog is strictly for filtering odors that originate from the vent stack on the roof.
Where does my order ship from? How long will it take to get my order?
Orders ship from Tucson, Arizona. OdorHog Inc. uses UPS and USPS shipping services. A UPS Service Level Map below shows how many days the order will take via UPS Ground. UPS 2nd Day and UPS 3 Day Select are based on BUSINESS days only. Please see the link at UPS for service level specifics.
I live in Canada, how do I purchase?
OdorHog has recently moved their Global Shipping to eBay.com. eBay has a terrific International Shipping Program that makes it easy for customers to purchase and receive OdorHogs, whether you're from Vancouver, BC or Marbella, Spain. Go to ebay.com and type in "odorhog".
Is there any functional difference between the METAL cap and the MUSHROOM cap?
There is NO functional difference between the two caps. It's just a matter of personal preference.
Some customers like the METAL cap because it looks like their furnace vent cap. Other people prefer the MUSHROOM cap because it is made of durable PVC plastic.
Although they function the same way, they are attached in a slightly different manner: the mushroom cap screws onto the filter, the metal cap is attached by friction.
Doesn't the filter restrict the airflow?
The filters do restrict the air flow somewhat. The restriction is so slight that it shouldn't interfere with normal venting of the plumbing system.
My plumber installed a vent pipe extension. Do I remove the extension or place the OdorHog over the vent extension?
Remove the extension. We have found that when an OdorHog is placed over an extension, the whole extension and OdorHog assembly act as a "sail" in the wind. The assembly will begin to oscillate in the wind. This could potientially damage your rooftop vent flashing and create a leak in your roof.
Do I need to order replacement carbon with my initial order of an OdorHog?
Not typically. In cases where the carbons may become saturated quickly you might, e.g. commercial or restaurant applications. The OdorHog comes ready to install on your vent pipe with a carbon bag preinstalled into the housing unit.
How do I install the OdorHog?
Simply slip the coupling end of the OdorHog over the existing vent pipe. You are basically coupling pipe together, except you do not need glue because the connection fits very snug.
Can the homeowner change or replenish the charcoal in the filter?
Yes the homeowner can. You may purchase bags of replacement charcoal for all units we currently sell.
How do I replace the charcoal in the OdorHogs?OdorHog charcoal bags can be replaced while the filter remains on the vent stack. Please see Installation and Troubleshooting Instructions at the bottom of the page, for detailed steps on how to change out the charcoal for your style of OdorHog cap.
What is the expected life of the unit?
The activated carbon can only absorb so much hydrogen sulfide (the gas that causes the smell). The filter life averages between 2 and 3 years, depending on your septic or sewer system and level of use. For example, if you put them on a restaurant they may last 1 year, because of the grease and steam present in the vent system. If you put them on a residence they may last 3 or more years. If you use a lot of bleach in your laundry, have a large family or if you have a water softener they may not last as long. Things that prematurely age your carbon life are grease, steam, clorox or other heavy duty cleaning products.
For what situations is the OdorHog filter intended?
- For situations where the septic gas odor (hydrogen sulfide or "sewer gas") is coming out of the plumbing vent pipes on the roof.
- Filters can also install onto vents that are directly connected to the septic tank.
- Municipal / City-sewer connections can bring sewer gas into the home's plumbing vents. The OdorHog filter has proven beneficial in those cases too.
- Many roof lines can trap or funnel vent pipe gases into the heat pump or air handler, pulling the odors inside the building when the air handler is on.
- Can be used on septic holding tanks.
In what situations will the OdorHog filter not work?
The OdorHog will NOT solve your odor problem if:
- the odor is originating from inside the house
- the odor is originating from the drain field
- the odor is originating from any leaks in the septic tank or plumbing vent system
Can I use the OdorHog if my house is venting Radon through the plumbing vents?No. Vent pipe filters should NEVER be put on the plumbing vents if a house is venting Radon through them.
Do I have to get a filter for every plumbing vent on the house?
Yes. Our experience has been that if you filter only one of the vents, the gas will find the path of least resistance and exit the un-filtered plumbing vent instead of going through the filtered vent. Your vent system is inner-connected, like a snake running throughout the inside of your home. If you filter one vent, it will act like a cork in a bottle and cause enough resistance that the gas will look for another location to exit.
What colors do the OdorHogs come in?
We sell them in PVC white and ABS black plastic. You may also paint your OdorHog to match your roof. However, we recommend that you don't paint the metal rain-cap, so as to keep paint from getting inside. We suggest you try it out before painting it, as we cannot make a refund for painted or modified units.
Do the OdorHog filters freeze up in extreme cold?
Our experience has been that OdorHogs do not freeze when they are properly maintained. In situations where they are left on the roof for years without a carbon changeout, after the carbon has become fully saturated with sewer gases, the carbon pellets can breakdown and cause restriction. For cold climates where extended weather of sub-zero temps are likely, we recommend the black ABS models which will absorb more heat than the white PVC models. We recommend replacing the carbon bag inside the filter after you notice the smell reappearing; this means your carbon has reached its capacity and needs to be replaced. Many cold climate customers who also have high humidity, have had success adding rock salt or salt water conditioner pellets to the top of their OdorHog carbon, just inside the cap.
Who uses your filters?
Anyone with a stinky vent pipe. Our customers are businesses, schools, hospitals, restaurants and home owners. Commercial customers who have their plumbing vents located too close to their air handlers, which can pull the odor back into the building through the air conditioner.
General Septic Odor Questions
Will the OdorHog filter help indoor septic odor at all?
Only if the outdoor odor from the roof vent pipe is being pulled in through windows or roof top air-conditioners. If you have indoor odor, call your plumber. Check to see that all drains have traps installed. Check to see that all the traps have water in them to hold back the gas. When the water in a trap dries out, it lets the gas through. The plumber may have to do what's called a "smoke test" to see where the septic gas is coming in. If the odor is coming from around the toilet, it could be a dried out wax ring under the toilet.
I have installed the OdorHog , now I am getting the odors inside my house, why?
As mentioned above, OdorHog will restrict air flow somewhat. If you do not have a completely sealed venting system this restriction will expose those leaking points. We have found that there may be a variety of reasons why this is happening.
The wax rings under your toilets may have become crusty due to age and are allowing the gases to leak through.While installing a picture on a wall, a screw or nail that is too long may have penetrated a vent pipe and thus damaged the venting system. P-Traps under sinks or in the floor have gone dry and need to be filled with water to seal the venting system. If you have an odor after installing the OdorHog in the basement from a floor drain, your floor drain may not have a p-trap installed. If this is the case please go to www.Trapguard.com. This product should seal the odors out from floor drains.
Why do some homes have this problem and others don't?
We believe it's due to air currents. Sometimes a "temperature inversion" puts a layer of air over your house and prevents the sewer gases from being carried up and away. Another scenario is if you live on the down-wind side of a hill, then the downdrafts might bring the sewer gases down to ground level. There are also some roof types that are more likely to have this issue; parapets can trap the air flow, hips or valleys on the roofline can bring the air down to the perimeter more easily, etc.
What about additives?
The inventor of the OdorHog tried additives and they didn't work for him so that's why he invented the OdorHog. We are not septic tank experts. Please refer to a competent septic tank installer, septic tank pumper, or plumber for questions regarding septic tank maintenance.
Where do you ship your products?
On OdorHog.com, we only ship within the United States, including Alaska and Hawaii.
If you live outside of the United States, you can order an OdorHog on EBay. They have a Global Shipping Program that calculates shipping and duties to your country and you can easily have an OdorHog shipped to you.
Do you give discounts to contractors and builders?
We work with Resellers and Plumbing Supply Groups. Please email us or call to discuss your volume purchase. We may ask you to fax us a copy of your retail merchant certificate or contractor's license.
What is your DUNS number?
How can I pay for my order?
For your convenience, we accept MasterCard, Visa, American Express, Discover and PayPal.
What is your return policy?
The OdorHog vent pipe filters are guaranteed to eliminate odors that originate from your vent pipes. If they do not solve your problem, please return them within 90 days for a full refund of the purchase price. We do not refund shipping costs. PLEASE NOTE: As a custom product, RoadHogs are NOT INCLUDED in our 90 Day Money Back Guarantee and are NOT returnable. Please DO NOT ship the product back to us without contacting us first and receiving a return authorization number. Please include a copy of your invoice so that we are able to find your transaction quickly and issue a prompt refund.
Can I place an order through the web site for SATURDAY delivery?
NO. All of our online shipping options are based on BUSINESS days. "Next Day Air" means next business day and "Second Day Air" means the second business day. UPS does not count Saturday and Sunday as business days. If you place an order on Friday using "Next Day Air," your package will arrive on Monday. Ordering on Friday with "Second Day Air" means that your package will be received on Tuesday.