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Refinance & DSCR Impact Calculator: Turn Water Savings Into Loan Proceeds
Lenders size loans on NOI and coverage. See how the FCD’s bill reduction raises the debt service your property supports — and what that means at your next refinance.
Up to 30%
typical water & sewer bill reduction
~$10
loan proceeds per $1 of annual savings at typical terms
12 mo
of post-install bills builds your lender documentation
90%
of customers reach ROI under 12 months
Direct Answer: The Refinance & DSCR Impact calculator converts FCD (Flow Conditioning Device) water and sewer savings into refinance capacity: the annual bill reduction increases NOI, the NOI increase supports additional annual debt service at your lender’s DSCR requirement, and that debt service supports additional loan proceeds at your rate and amortization — roughly $10 of proceeds per $1 of documented annual savings at typical terms. Not lending advice; lenders underwrite from your documented trailing statements.
Refinance & DSCR Impact Calculator
Lenders size loans on Net Operating Income and debt service coverage. Every dollar the FCD adds to NOI raises the debt service your property can support — which can mean more proceeds at your next refinance.
Combined monthly water plus sewer/wastewater cost.
Results vary by building. Documented installations typically show up to 30%; try several tiers to see your range.
1.20x–1.30x is typical for stabilized commercial and multifamily assets.
Annual NOI Increaseyour bill reduction, straight to the income line
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Additional Supportable Annual Debt ServiceNOI increase ÷ your lender’s DSCR requirement
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Estimated Additional Loan Proceedsat 6.5%, 30-year amortization
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Enter your monthly bill to see how the FCD’s NOI increase translates into refinance capacity.
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Planning estimate only — not lending, financial, or investment advice, and not a loan commitment. Actual loan sizing depends on your lender’s underwriting, appraised value, loan-to-value limits, expense treatment, and documented trailing operating history — lenders typically require the NOI improvement to appear in trailing-twelve-month statements before crediting it. This tool estimates water and sewer bill cost reduction only; the FCD (Flow Conditioning Device) does not reduce actual water usage. Actual bill reduction varies by property (up to 30%, 46% highest documented). Loan proceeds are computed from your selected rate, amortization, and DSCR using standard mortgage constant math.
Common Questions
How do water and sewer savings increase loan proceeds?
Lenders size commercial loans on Net Operating Income and a debt service coverage ratio (DSCR). Every dollar the FCD (Flow Conditioning Device) removes from your water and sewer expense is a dollar of additional NOI, which supports more annual debt service at your lender’s coverage requirement — and therefore more loan proceeds at your selected rate and amortization. At typical terms, every $1 of documented annual savings supports roughly $10 of additional proceeds.
Will my lender actually credit the savings?
Lenders underwrite from documented operating history, so the reduction must be visible in your trailing financial statements — most commonly a trailing-twelve-month comparison. Because FCD savings appear directly on municipal water and sewer bills, they are third-party verifiable. Keep 12 months of pre-installation and 12 months of post-installation bills; how any individual lender treats the reduction is their underwriting decision.
What DSCR requirement should I use in the calculator?
Use the coverage requirement from your loan documents or term sheet. For stabilized commercial and multifamily assets, 1.20x to 1.30x is typical; agency, bank, and CMBS requirements vary. A higher DSCR requirement means less additional proceeds per dollar of NOI — the calculator lets you test the range.
When should I install the FCD relative to a refinance?
Early. Because lenders want the improved NOI documented in trailing statements, installing 12 or more months before your refinance lets a full year of reduced bills flow into the operating history the lender underwrites. Savings begin on the next full billing cycle after the roughly one-hour installation.
Is this calculator lending or financial advice?
No. It is a planning estimate using standard mortgage constant math at your selected rate, amortization, and DSCR — not a loan commitment, appraisal, or investment advice. Actual loan sizing also depends on appraised value, loan-to-value limits, and your lender’s expense treatment. The FCD does not reduce actual water usage; it reduces billed water and sewer cost caused by meter over-reading, averaging up to 30% (46% highest documented).
More Free Tools
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a meter reading more than your building received.
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Your full savings estimate: bill reduction tiers, FCD sizing, payback, and property value impact at your cap rate.
Cost of Waiting Calculator
What every month of delay costs — over-charges that are billed, paid, and never refunded.
Standards, Certifications & Water Efficiency Resources
Up to 30% bill reduction | 46% highest documented | 90% ROI under 12 months | Under 0.8 psi pressure loss
Install Early. Document the Bills. Refinance
on the Improved NOI.
A free savings analysis from Water Flow Innovations reviews your actual bills, meter size, pipe size, pressure, and PRV configuration — and projects your specific savings range before you commit to anything.