Formal 4200 gal pond 6feet deep two airated 4'' bottom drains to ultrasieveIII then ultra bublebead UB60, returned via two 1 1/2'' below surface pipes at opposing corners and one 1 1/2 '' above water return for that running water sound ( may be directed to all or any returns )
Formal 4200 gal pond 6feet deep two airated 4'' bottom drains to ultrasieveIII then ultra bublebead UB60, returned via two 1 1/2'' below surface pipes at opposing corners and one 1 1/2 '' above water return for that running water sound ( may be directed to all or any returns )
