---
title: "rv black water tanks — Niche Verdict: Skip it (46/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/rv-black-water-tanks"
last_updated: "2026-07-14T07:28:14.857Z"
locale: en
meta:
  description: "prices mostly outside the sweet spot ($95.06–$401.28) — rv black water tanks doesn't clear our bar today."
  "og:description": "prices mostly outside the sweet spot ($95.06–$401.28) — rv black water tanks doesn't clear our bar today."
  "og:title": "rv black water tanks — Niche Verdict: Skip it (46/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **rv black water tanks**

**Skip it**

Prices mostly outside the sweet spot ($95.06–$401.28) — this niche doesn't clear our bar today.

Market size 79Growth 81Conversion 16Competition 38Returns 46Price range 2Avg price 45Brand share 23Review moat 24Quality gap 40

**Growth**

**Great****+74.7%**

90-day search growth — must beat 0% to launch

**Market size**

**Great****$1.1M**

$1.1M/yr · 427K searches

**Returns**

**Okay****3.5%**

return rate — above 6% kills the launch gate

**Avg price**

**Okay****$209.37**

avg listing price — sweet spot $15–$100

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Competition**

**Okay****62%**

top-5 click share — leaders hold, buyers still browse

**Review moat**

**Bad****5,508**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Bad****91%**

top-5 brand share — brand-locked demand

**Conversion**

**Bad****1.2%**

search→purchase rate — share of searches ending in a sale

**Price range**

**Bad****$95.06–$401.28**

cheapest to priciest tracked listing — scored on the share inside $15–$100

## **Competition**

The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**9 **▲rising

**Sellers**

**74**

**Top-5 brand share**

**91%**

**Open market**

**6%**

- Camco63% - BARKER8% - classAcustoms8% - Venustank7% - RecPro5% - Tough Grade4% - Open — no brand owns it (3 brands, 6%)

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%5%$55K10%$111K15%$166K20%$222K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 22 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Camco Rhino 36-Gallon RV Tote Tank - Features Large Heavy-Duty No-Flat Wheels & Built-in Gate Valve - Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39006)](https://m.media-amazon.com/images/I/3180iSpEwTL.jpg)**Camco Rhino 36-Gallon RV Tote Tank - Features Large Heavy-Duty No-Flat Wheels & Built-in Gate Valve - Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39006)**Camco**$238.12**4.7★27,214 rev](https://www.amazon.com/dp/B07K8NK525) [2![Camco Rhino 21-Gallon RV Portable Waste Tank - Features Large Heavy-Duty No-Flat Wheels & Low Drain Hole - Includes Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39002)](https://m.media-amazon.com/images/I/31EIwuRu0zL.jpg)**Camco Rhino 21-Gallon RV Portable Waste Tank - Features Large Heavy-Duty No-Flat Wheels & Low Drain Hole - Includes Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39002)**Camco**$162.17**4.7★27,214 rev](https://www.amazon.com/dp/B07CQ1WC72) [3![Camco Rhino 15-Gallon Portable RV Tote Tank - Features Large Heavy-Duty No-Flat Wheels & Low Drain Hole - Includes Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39000)](https://m.media-amazon.com/images/I/31EIwuRu0zL.jpg)**Camco Rhino 15-Gallon Portable RV Tote Tank - Features Large Heavy-Duty No-Flat Wheels & Low Drain Hole - Includes Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39000)**Camco**$127.43**4.7★27,214 rev](https://www.amazon.com/dp/B07DN8X8M6) [4![Camco Rhino 28-Gallon Camper/RV Tote Tank - Features Large Heavy-Duty No-Flat Wheels & Built-in Gate Valve - Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39004)](https://m.media-amazon.com/images/I/3180iSpEwTL.jpg)**Camco Rhino 28-Gallon Camper/RV Tote Tank - Features Large Heavy-Duty No-Flat Wheels & Built-in Gate Valve - Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39004)**Camco**$182.79**4.7★27,214 rev](https://www.amazon.com/dp/B07K87FR5C) [5![Barker 4-Wheeler Tote Tank - 42 Gallon Capacity (30844)](https://m.media-amazon.com/images/I/41y9htSCvqL.jpg)**Barker 4-Wheeler Tote Tank - 42 Gallon Capacity (30844)**BARKER**$316.50**4.6★3,058 rev](https://www.amazon.com/dp/B000OR18BE)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Tough Grade RV Holding Tanks | Made in USA (30 Gallons)](https://m.media-amazon.com/images/I/210yOm2gFXL.jpg)**Tough Grade RV Holding Tanks | Made in USA (30 Gallons)**Tough Grade**$162.81**7 rev10mo ago](https://www.amazon.com/dp/B0FP2YVDL9) [![Venustank 39 Gallon RV Portable Waste Tank 2 Wheel Tote Tank](https://m.media-amazon.com/images/I/31ErdC6XTkL.jpg)**Venustank 39 Gallon RV Portable Waste Tank 2 Wheel Tote Tank**Venustank**$326.36**17 rev1y ago](https://www.amazon.com/dp/B0DSC1Q1T6) [![Venustank 30 Gallon RV Portable Waste Tank 2 Wheel Tote Tank](https://m.media-amazon.com/images/I/31+xwAl0gqL.jpg)**Venustank 30 Gallon RV Portable Waste Tank 2 Wheel Tote Tank**Venustank**$263.72**48 rev1y ago](https://www.amazon.com/dp/B0DK3BGY13) [![Venustank 30 Gallon RV Portable Waste Tank 4 Wheel Tote Tank](https://m.media-amazon.com/images/I/41CSS1jz6nL.jpg)**Venustank 30 Gallon RV Portable Waste Tank 4 Wheel Tote Tank**Venustank**$295.95**19 rev1y ago](https://www.amazon.com/dp/B0DK3CN2X7) [![SereneLife 75L RV Portable Water Tank with Wheels and Level Gauge](https://m.media-amazon.com/images/I/51vgufkhc4L.jpg)**SereneLife 75L RV Portable Water Tank with Wheels and Level Gauge**SereneLife**$141.87**189 rev1y ago](https://www.amazon.com/dp/B0DCKD59FX)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![BARKER 15Gal Tote-Along](https://m.media-amazon.com/images/I/31dMvPnkgzL.jpg)**BARKER 15Gal Tote-Along**BARKER**$111.70**4.5★**▲ 197%**](https://www.amazon.com/dp/B00069C7QA) [![Ameri-Kart 48 Gallon RV Black Water Tank Leak-Proof RV Water Storage Tank for Toilets in Campers Trailers Motorhomes and RVs End Discharge 70 x 28 x 8 (HT-1103)](https://m.media-amazon.com/images/I/31AsJbyRxyL.jpg)**Ameri-Kart 48 Gallon RV Black Water Tank Leak-Proof RV Water Storage Tank for Toilets in Campers Trailers Motorhomes and RVs End Discharge 70 x 28 x 8 (HT-1103)**Ameri-Kart**$401.28**4.3★**▲ 196%**](https://www.amazon.com/dp/B0CKD5X2KX) [![Camco Rhino 28-Gallon Portable RV Tote Tank - Features 2 Steerable No-Flat Front Wheels & Built-in Gate Valve - Includes Removable 24 Tow Bar 3 Sewer Hose & More RV Accessories (39005)](https://m.media-amazon.com/images/I/316kdJP2HxL.jpg)**Camco Rhino 28-Gallon Portable RV Tote Tank - Features 2 Steerable No-Flat Front Wheels & Built-in Gate Valve - Includes Removable 24 Tow Bar 3 Sewer Hose & More RV Accessories (39005)**Camco**$286.84**4.7★**▲ 116%**](https://www.amazon.com/dp/B083YMLG4K) [![Tough Grade RV Holding Tanks | Made in USA (30 Gallons)](https://m.media-amazon.com/images/I/210yOm2gFXL.jpg)**Tough Grade RV Holding Tanks | Made in USA (30 Gallons)**Tough Grade**$162.81**4.8★**▲ 108%**](https://www.amazon.com/dp/B0FP2YVDL9) [![Camco Rhino 15-Gallon Portable RV Tote Tank - Features Large Heavy-Duty No-Flat Wheels & Low Drain Hole - Includes Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39000)](https://m.media-amazon.com/images/I/31EIwuRu0zL.jpg)**Camco Rhino 15-Gallon Portable RV Tote Tank - Features Large Heavy-Duty No-Flat Wheels & Low Drain Hole - Includes Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39000)**Camco**$127.43**4.7★**▲ 99%**](https://www.amazon.com/dp/B07DN8X8M6)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — +74.7% search growth over the last 90 days.

15K10KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Jun, Jul · busiest ÷ quietest = 2.5×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Quality-Overall**21%

*“Well made and easy to assemble”*

**Advertised Vs Actual Product**10%

*“As advertised”*

**Ease Of Use**9%

*“Easy to use”*

**Value For Money**8%

*“Worth the money”*

**Strength**7%

*“i really like how stable it feels”*

**Weight Heavy**5%

*“I got to admit it's heavy heavier than anything I've ever had The quality is amazing I honestly feel this will be the last one I ever have to buy again”*

**Durability**4%

*“Durable, easy to use”*

**Size-Overall**4%

*“Perfect size and easy to use”*

**Assembly/Installation**4%

*“Easy assembly”*

**Efficiency**3%

*“Works well”*

### **What buyers complain about **

**Leak-Proof**14%

*“when I was filling the tank it was leaking”*

**Durability**9%

*“Not to durable”*

**Size-Overall**8%

*“Nothing in my camper world will fit this”*

**Value For Money**6%

*“Cheap is expensive”*

**Wheel Quality**5%

*“The back axle somehow wore into the tank”*

**Design-Overall**5%

*“Bad design”*

**Quality-Overall**3%

*“crappy”*

**Ease Of Cleaning**3%

*“Not clean, Messy, nasty”*

**Unsustainable Design**3%

*“has one significant design error”*

**Weight Heavy**2%

*“weighs enough that without some kind of assist handle it's too much to lift up alone”*

### **Top return reasons **

**Size-Overall**41%

**Defective Material/Parts**9%

**Weight Heavy**7%

**Leak-Proof**7%

**Advertised Vs Actual Product**6%

**Compatibility-Overall**5%

**Functionality-Overall**4%

**Value For Money**4%

**Connectivity-Overall**2%

**Ease Of Use**2%