He aha ka Vigor's Unlimited-Circulation Bypass Valve (UCBV)?
ʻO ka Vigor's Unlimited-Circulation Bypass Valve (UCBV) ʻike i ka palena ʻole "on" a me "off" o ka underground bypass e hoʻokahi manawa pitching a me ka mana kahe kahe ma ke poʻo punawai, e ʻike ai i nā pilina a me nā disconnections ma waena o ka maka wai a me ka ann. ..
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