10′ Diameter BX Series 10′ diameter

BX Series

Water & Wastewater

Model Capacity (Imp.Gal.) Capacity (US Gal.) LengthWeight (lbs)
BX50005000600011’10”2050
BX60006000720013’11”2300
BX70007000840016’1″2550
BX80008000960018’1″2800
BX900090001080020’1″3000
BX10000100001200022’1″3250
BX11000110001320024’3″3500
BX12000120001440026’5″3750
BX13000130001560028’9″4000
BX14000140001680031’1″4250
BX15000150001800033’3″4500
BX16000160001920035’5″4750
BX17500175002100037’8″5100
BX20000200002400042’2″5650
BX22000220002640046’9″6200
BX26000260003120055’9″7200
BX30000300003600063’5″8300
BX34000340004080071’5″9300

Please indicate the model you require when ordering by including a (W) for water and a (S) for wastewater after the model number.

Additional accessories available (Including divider walls, pump stand, manways, ladders, etc.). Comes with 30” flanged collar (and lid)

For flanged manways and lids, please see extension page. For additional fittings or accessories please contact FRP Mocoat.

Product Specification

Water & Wastewater

Model Capacity (Imp.Gal.) Capacity (US Gal.) LengthWeight (lbs)
BX50005000600011’10”2050
BX60006000720013’11”2300
BX70007000840016’1″2550
BX80008000960018’1″2800
BX900090001080020’1″3000
BX10000100001200022’1″3250
BX11000110001320024’3″3500
BX12000120001440026’5″3750
BX13000130001560028’9″4000
BX14000140001680031’1″4250
BX15000150001800033’3″4500
BX16000160001920035’5″4750
BX17500175002100037’8″5100
BX20000200002400042’2″5650
BX22000220002640046’9″6200
BX26000260003120055’9″7200
BX30000300003600063’5″8300
BX34000340004080071’5″9300

Frequently Asked Questions

Are FRP septic tanks approved for use in Washington State?
Yes. Every FRP septic tank we manufacture meets or exceeds CSA Standard B66, a key compliance benchmark for wastewater containment. These tanks are suitable for use across Washington in residential, industrial, and remote applications, where code-compliant, environmentally safe septic solutions are required.
We offer a variety of sizes to accommodate different needs – from small-capacity tanks for cabins and tiny homes, to larger systems for full-time residences, work camps, and commercial setups. Our team can help you select the right size based on your expected usage and site conditions.
With proper installation and maintenance, fiberglass septic tanks can last 40 years or more. Their corrosion resistance and seamless construction help prevent leaks and structural failures, even when buried underground for decades. That’s why many Washington property owners choose fiberglass over concrete or steel.
Washington’s coastal zones, like those around Seattle or Bellingham, deal with high groundwater and fluctuating soil conditions. Fiberglass septic tanks are non-corrosive and watertight, making them a great fit for these environments. Their lightweight nature also allows for easier placement without the need for heavy equipment, even in challenging terrain.

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