Catalog: Water Treatment | |
| duff co 1 a b c d e day clock regeneration water treatment commercial ... new 24 hour label twin systems with clock regeneration usually will have ... staggered regen eration times min 3 hour difference twin clock ... day are avail able consult duff co clock type systems are best suited where ... days are predictable on the same days each week twin systems usually are used when ... out #1 unit regenerates then #2 regen erates series regeneration can be designed ... much greater flow rates without the expense and handling of very large tanks b ... | |
