我估计我的pond不够深,冬天的时候会整个结冰,鱼都会死掉的。9 N4 w% `; Y( B8 E' A
如花 发表于 2010-7-4 14:48
' K( b4 f- Y0 f6 n, U2 t/ Q5 W可以買一產品名deicer,讓冰面留一圓洞便可,冷天覆蓋sterofoam insulate,用電量不會很多,Princess Auto有 an identical but differently named product 叫 water trough heater 賣價便宜得多,大約 C$35.