Project description
We are looking for an experienced pond and water-feature contractor to design and install a fully functional koi pond in our backyard, complete with a rock waterfall and a reliable filtration system. The pond should hold roughly 3,000 to 4,000 gallons of water and reach a minimum depth of 3 feet in at least one zone so the koi can overwinter safely.
Scope of work includes excavation and grading of the pond basin, installation of a 45-mil EPDM rubber liner over protective underlayment (no PVC, since EPDM is more UV- and puncture-resistant for long-term fish safety), and construction of a stacked-stone waterfall feature roughly 4 to 5 feet tall that recirculates water back into the main basin. The filtration system needs to combine mechanical filtration (a settling/skimmer chamber to trap debris) with biological filtration (a bio-filter with sufficient media surface area for beneficial bacteria) sized for the pond's volume — we are thinking a pump rated around 3,000-4,000 GPH feeding both the waterfall and a UV clarifier to control algae and keep the water clear for viewing the fish.
Fish safety is critical: no sharp liner folds or exposed rebar edges, a skimmer basket to keep koi from being pulled into the pump, and edge rocks set back from the waterline so they can't shift into the water. We would also like a bottom drain connected to the filtration return, plumbing runs buried below frost line, and a dedicated GFCI-protected electrical circuit for the pump, UV unit, and any pond lighting.
We already have six adult koi in a temporary holding tank that need to be transferred once the pond is cycled and stable — please include a plan for cycling the new system safely before introducing the fish. Timeline: we would like the project completed within 10-14 days, weather permitting, starting with excavation and finishing with planting of marginal aquatic plants around the pond edge. Please provide your relevant experience with pond/water-feature installation, references from past koi pond clients, and a breakdown of materials versus labor in your quote.
Scope of work includes excavation and grading of the pond basin, installation of a 45-mil EPDM rubber liner over protective underlayment (no PVC, since EPDM is more UV- and puncture-resistant for long-term fish safety), and construction of a stacked-stone waterfall feature roughly 4 to 5 feet tall that recirculates water back into the main basin. The filtration system needs to combine mechanical filtration (a settling/skimmer chamber to trap debris) with biological filtration (a bio-filter with sufficient media surface area for beneficial bacteria) sized for the pond's volume — we are thinking a pump rated around 3,000-4,000 GPH feeding both the waterfall and a UV clarifier to control algae and keep the water clear for viewing the fish.
Fish safety is critical: no sharp liner folds or exposed rebar edges, a skimmer basket to keep koi from being pulled into the pump, and edge rocks set back from the waterline so they can't shift into the water. We would also like a bottom drain connected to the filtration return, plumbing runs buried below frost line, and a dedicated GFCI-protected electrical circuit for the pump, UV unit, and any pond lighting.
We already have six adult koi in a temporary holding tank that need to be transferred once the pond is cycled and stable — please include a plan for cycling the new system safely before introducing the fish. Timeline: we would like the project completed within 10-14 days, weather permitting, starting with excavation and finishing with planting of marginal aquatic plants around the pond edge. Please provide your relevant experience with pond/water-feature installation, references from past koi pond clients, and a breakdown of materials versus labor in your quote.
Design and multimedia Cash, Bank transfer
