Modular chamber assembly and method of constructing such assembly

摘要

A modular chamber assembly comprising:
(i) one or more base portions (14,15,60), said base portion (14,15,60) incorporating one or more spigots (31,32,33,34,41,42,43,53);
(ii) a riser portion (16);
(iii) optionally a lid (17) to close the top of the riser portion (16);
the base portion(s) (14,15,60) and riser portion (16) being adapted to nest one on top of another.