ensawo za ppipa zibeera n'ensawo z'okutereka eziyingira mu mpewo nga ziteekebwamu polyethylene liners bbiri singa zisibiddwa bulungi zisalako empewo okuva ebweru oxygen munda mu nsawo akozesebwa mu kiseera ky'okukyusakyusa ebiriisa era kaboni afuluma akungaanyizibwa munda mu nsawo