1, ka lepo a me ka lepo me ke kopa wai maloʻo maloʻo a me ka holoi wai mahana.

2, hōʻailona, ​​kiʻiʻoniʻoni me ka wai mahana a me ka mea holoi palupalu e holoi ai.
Holoi ʻia ka mea paʻa me ka waiʻona a i ʻole ka solvent organik.

3, ka ʻili o ka ʻaila, ka aila, ka ʻaila pollution, holoi me kahi lole palupalu, kala kila kila me ka mea hoʻomaʻemaʻe kūʻokoʻa a i ʻole ka hopena amonia a i ʻole me ka mea holoi kūikawā e holoi.

4, inā loaʻa ka waika, holoi koke me ka wai, a laila e hoʻohana i ka solution ammonia a i ʻole ka hoʻomaʻemaʻe ʻana i ka wai hoʻoheheʻe carbonated neutral, a laila hoʻohana i ka holoi wai ʻole a me ka wai mahana.

5, ka ʻili o ke ānuenue kila kila, ʻoi aku ka nui o ka hoʻohana ʻana i ka mea holoi a i ʻole ka aila i hoʻohana ʻia e ka hoʻohana ʻana i ka wai mehana ka holoi holoi ʻole hiki ke holoi ʻia.

6, hiki ke hoʻohana i ka 10% nitric acid a i ʻole ka holoi ʻana i ka mea holoi holoi, hiki ke hoʻohana i nā lāʻau holoi holoi kūikawā.

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