River Mole on the future cleanliness of the Mole was had by the House of Lords involving a member of the South-East Strategic Committee, of the Thames Conservancy (succeeded by the Environment Agency) and four others. In this it was said "...I can see no future for [The Mole]. The Mole Valley has been polluted. The Mole where I used to tickle trout in my youth is a drain, and it will remain a drain." Rebuttals included that the Mole is a "charming Surrey steam" and "If Lord Lytton went to fish in the River Mole—and there are still angling clubs there—he
De Hiemerter Mole, Burgwerd diesel engine was removed in the mid-1970s and an automatic pumping station built. In 1973, the mill was bought by De Hollandsche Molen. In 1976, the mill was restored to working order. On 16 May 1988, the mill was sold to Stichting De Fryske Mole (English:"Frisian Mills Foundation"). "De Heimerter Mole" is what the Dutch describe as a "spinnenkopmolen" (English: "Spider mill"). It is a small hollow post mill winded by a winch. The four Common sails, which have a span of , are carried in a wooden "windshaft". The "windshaft" also carries the "brake wheel" which has 29 cogs.