Rising Damp out of the house with a 'flea in his ear', defending Alan, apparently because Rigsby was offended the man assumed Rigsby to be Alan's father. Alan is immature and Rigsby does become something of a strange father figure for him. Philip Smith (Don Warrington) is a second generation British African from Croydon, although for most of the series he claims to be an "African Prince" and the son of an African tribal King. Philip's lies about his 'primitive' background seem most obviously an ironic response to Rigsby's ignorant remarks, and sometimes result in moments when Rigsby's gullibility and desperation lead
Damp (structural) water is absorbed into the porous material and is transported above the water line. Rising damp can be identified by a characteristic "tide mark" on the lower section of affected walls. This tide mark is caused by soluble salts (particularly nitrates and chlorides) contained in the groundwater. Due to the effects of evaporation these salts accumulate at the "peak" of the rising damp. The issue of rising damp has been a concern since ancient times. The Roman Architect Vitruvius referred to the problem of dampness rising up walls and advised on how to construct buildings to avoid the problem. Rising