call us toll free:

253.770.6594

​Washington On-Site Sewage Association

Bio-Microbics, Inc.
Onsite Wastewater Treatment Products
800.753.3278
Bio-Microbics
 www.biomicrobics.com
Aquatest, Inc.
The NIBBLER
800.221.3159
Aquatest, Inc.
www.aquatestinc.com
Berg Vault Company
Offers a full line of on-site septic system components, from septic tanks to gravel-less drainfield chambers 
360.424.4999
Peggy Schultz
bergvault.com

Delta Environmental
Total Onsite Wastewater Solutions
360.736.5218
Jeannie Yackley
Goode & Assoc.
www.deltaenvironmental.com
Geoflow
Onsite Drip Products
800.828.3388
Geoflow
https://geoflow.com
H.D. Fowler Company
Onsite Wastewater Product Supplier
425.746.8400
H.D. Fowler
www.hdfowler.com
Infilitrator Systems, Inc.
QUICK4 PLUS STD Chambers
888.237.4344
Brad Routh
866.511.6071
Jay Homan
https://infiltratorwater.com
Jet, Inc.
Advanced Wastewater Treatment
800.321.6960
Jet, Inc.
www.jetincorp.com
Matzke Sales, Inc.
Representative for Numerous Manufactures of Onsite Wasterwater Products
253.872.2029
Matzke Company

Netafim
Onsite Drip Dispersal System
800.323.4350
Matzke Company
www.netafimusa.com
NuWater, by Enviro-Flo, Inc.
AdvanTex Treatment Systems
360.687.7668
Nathan Ek
Ek Engineering
www.ekengineering.net/NuWater
Orenco, Inc.
AdvanTex Treatment Systems
800.348.9843
Orenco, Inc.
www.orenco.com
Polylok, Inc.
One Stop Shop for Onsite Wastewater Products
877.765.9565
Polylok
www.polylok.com
Premier Plastics, Inc.
Gravity Dosing with FLOUT
800.661.4473
Premier Plastics
www.premierplastics.com
RepCo Sales Agency
Manufacturer representative for several onsite equipment manufacturers
503.877.3726
RepCo Sales
www.repcosalesagency.com
Roth Global
The Roth MultiTank is the first tank of its kind. It can be used for water cistern, pump, holding, rainwater or septic tank.
530.864.0438
315.579.3332
David Holmes
Roth Global
www.roth-usa.com
Salcor, Inc.
UV Disinfection
760.731.0745
Salcor, Inc. 

Tuff Tiger
Drip Dispersal Products
866.770.7785
Tuff Tiger
www.tufftiger.com
Watercolor Management, Inc.
WOSSA Endorsed Liability
and Property Insurance 
256.260.0412
Karen Seals
Watercolor Mgmt.
watercolormanagement.com


WOSSA Manufacturers - Suppliers


Manufacturers & Suppliers