up vote 0 down vote accepted. I discovered that the chimney/pipe/whatever you want to call it is not held together by anything. I simply pushed the wood stove out of the way and then the pipe came loose. I bought a cap from Lowes and capped it off.
In hair tests, the marijuana detection time can range from three months up to three years from the last time that you used a drug. Most labs will only look at the last 90 days. Hair grows on average half an inch per month, so 1.5 inches of hair corresponds to about 90 days.
â¢ and the Frequency of Use. The most popular drug test is a urine test. THC will test positive in a urine drug test within 2-5 hours of use. If you are a one time user or no more than a couple of times per month, you may test positive for 1-6 days after your last use.A moderate or weekly user may test positive for 7-13 days after their last use.f marijuana use is detected in a hair drug test then it would show up 7 days after use and for as long as 90 days. Hair tests can reliably detect chronic or daily use, but may not detect occasional use. It is doubtful that one time marijuana use would be detected on a hair drug test.