Request a Test To request a Test, please complete the form below. Name Address City CT MA RI State Zip Home Phone Work Phone Email Address Name of Water Company Is the device located inside or outside the house? Outside Inside Don't Know Backflow Preventer location: ( when facing your house from the street ) Front Left Side Back Right Side Don't Know Price for an annual backflow preventer test is $ 49.95 plus tax , additional devices at the same address are $20.00 each. Volume discounts are also available for ajacent dewllings within a development or on the same street. By checking the box below and submitting this request, I agree to have Abacus Backflow Preventer Testing, Inc. test my backflow device(s). I have read and agree to the testing rates. Upon completion of the testing, Abacus Backflow will provide you and your water utility company a copy of the test report. I have read and understand the above statement.