きれいな基準表
実際の組み合わせを記録しておくと、あとで圧力が上がったときに、現場で意味のある比較になります。
状態 読み値 きれいなフィルター 12 PSI、1,800 RPM サービスの目安 基準より +8〜+10 PSI
現場ではこう見える
基準表、運転例、フィルターの手がかり
きれいな基準値、実際のポンプ回転数、正しい機種が分かって初めて、フィルターは診断できます。
フィルター種類の手がかり
砂、カートリッジ、DE の各フィルターは、逆洗・清掃・分解の扱いがそれぞれ違うため、マニュアルはタンクに合っている必要があります。
砂 逆洗 カートリッジ 清掃して再シール DE マニュアルに従って補充
運転時間の例
花粉が多い週や落ち葉の多い週は日中の運転時間を長くする必要がある一方、穏やかな週ならスキミングと透明度が保てていれば短くできます。
穏やかな週 スキミングが保てるなら短め 花粉の週 日中の運転を長めに 負荷が大きい 先に清掃か吸引、そのあと基準をリセット
故障の兆候
圧力が高く流量が弱いなら詰まり、圧力は正常なのに水が濁るなら循環か負荷の問題です。
高圧 + 低流量 詰まりか汚れたろ材を疑う 正常圧 + 濁り 循環、負荷、または戻りの届き方を疑う
サインインして設備情報をプールに保存
Visual Guide
Filter Pressure Gauge Zones
Clean
Backwash
Danger
Clean
Normal operating range. Record your clean baseline at a known pump speed.
Needs Backwash
Pressure is 8-10 PSI above clean baseline. Time to backwash or clean the filter media.
Danger / Blocked
Pressure is well above normal. Stop the pump and inspect the filter, plumbing, and return path.
Current reading
0 PSI30 PSI
Visual Guide
Multiport Valve Positions
Filter
Normal filtration. Water flows through filter media.
Backwash
Reverse flow through filter. Flushes debris to waste.
Rinse
Used after backwash to settle media before filtering.
Waste
Bypasses filter. Used for draining or vacuuming debris.
Recirculate
Water bypasses filter. Used for chemical circulation.
Closed
Blocks all flow. Do not run pump in this position.
Visual Guide
Identify Your Filter Type
Sand
- Large round or dome tank
- Side or top-mount valve
- Sand media inside
Cartridge
- Cylindrical tank with clamp band
- Pleated cartridge elements inside
- No backwash port
D.E.
- Manifold with internal grids
- Bump handle or backwash port
- D.E. powder added after backwash
Filtration and Circulation
Cloudy water often starts with flow, filter condition, or dirty media long before it becomes a chemistry emergency.
Use this when
- Cloudy water often starts with flow, filter condition, or dirty media long before it becomes a chemistry emergency.
You'll need
- Clean filter pressure and pump RPM
- Current filter pressure
- Filter type and model family
Stop and escalate if
- Do not open a filter tank, crack a clamp band, or break into a pressure vessel unless the exact manual supports it.
- Do not treat DE-to-sand as universal manufacturer guidance.
最初に行うこと
Clean or backwash the filter completely, then record the clean pressure and pump speed. A filter is only diagnosable when you know its clean baseline.
してはいけないこと
- ✕Do not open a filter tank until trapped pressure is fully relieved
- ✕Do not treat sand, cartridge, and DE filters as interchangeable service procedures
- ✕Do not chase chemistry while the valve path is bypassing or starving the filter
- ✕Do not use generic PSI targets instead of your system's clean baseline
用意するもの
Clean filter pressure and pump RPM / Current filter pressure / Filter type and model family
0%0/28 done
1
Document your clean baseline
A filter only becomes diagnosable once you know what normal looks like.
2
Match maintenance to filter type
Sand, cartridge, and DE filters behave differently and should not be treated as interchangeable.
Warnings
- Do not open a filter tank, crack a clamp band, or break into a pressure vessel unless the exact manual supports it.
3
Separate pressure rise, low flow, air, and bypass
The pressure gauge is useful only when you know which side of the system is misbehaving.
4
When cloudy water is mechanical
The filter can only catch what the circulation system presents to it.
5
Stop when the problem is not the filter
If pressure, flow, or clarity points elsewhere, branch before cleaning the same part repeatedly.
6
Using DE carefully
DE can sharpen filtration performance, but it is not a casual powder to throw around.
Warnings
- Do not treat DE-to-sand as universal manufacturer guidance.
7
Circulation tuning
The goal is even circulation and enough filtration time for the conditions, not a fixed daily runtime myth.
リソース（20）
Manufacturer manuals and model-family index
Use the family index before you assume backwash, cartridge-cleaning, or clamp procedures are interchangeable.
Owner vs pro boundaries
Use the boundary guide when the filter work crosses into pressure-vessel teardown, clamp bands, live electrical, or anything the manual says is service-only.
Manual library
Browse the manual library when you want the source documents rather than chasing vendor links.
Filter service deep dive
Use the deeper filter-service workflow when cartridge sealing, D.E. recharging, sand channeling, or tank teardown is the actual problem.
Vacuuming and waste workflows
Use the cleanup workflow when heavy debris needs to go through the waste line instead of the filter.
Emergency troubleshooting
Use the fault guide when the circulation problem is really a power, pump, or startup failure.
Clean & Clear Plus owner manual, cast clamp models
Source-hosted owner manual for cartridge-filter cleaning, seal inspection, and reassembly. Official source: pentair.com.
Quad D.E. owner manual, cast clamp models
Source-hosted owner manual for D.E. teardown, backwash, and recharge service. Official source: pentair.com.
Sand Dollar installation and user guide
Source-hosted owner manual for sand-filter backwash, valve operation, and media care. Official source: pentair.com.
Tagelus owner manual
Source-hosted owner manual for sand-filter backwash, valve operation, and media care. Official source: pentair.com.
SwimClear owner manual
Hayward owner manual for the SwimClear C2030/C3030/C4030/C5030/C7030 family. Official source: commerce.hayward-pool-assets.com.
ProGrid owner manual
Hayward owner manual for the current ProGrid vertical-grid D.E. family. Official source: commerce.hayward-pool-assets.com.
ProSeries owner manual
Hayward owner manual for the ProSeries high-rate sand family. Official source: commerce.hayward-pool-assets.com.
XStream cartridge filter manual
Hayward XStream current cartridge-filter manual. Official source: commerce.hayward-pool-assets.com.
Jandy CS manual
Jandy CS cartridge filter installation and operation manual. Official source: cdn.fluidrausa.com.
Jandy CV/CL manual
Jandy CV/CL cartridge filter installation and operation manual. Official source: cdn.fluidrausa.com.
Jandy DEV manual
Jandy DEV diatomaceous earth filter I/O manual. Official source: cdn.fluidrausa.com.
Jandy JS manual
Jandy JS fiberglass side-mount sand filter manual. Official source: cdn.fluidrausa.com.
Jandy SFTM manual
Jandy SFTM top-mount sand filter installation and operation manual. Official source: cdn.fluidrausa.com.
Jandy SFSM manual
Jandy SFSM side-mount sand filter installation and operation manual. Official source: cdn.fluidrausa.com.
Educational guidance only. Verify labels, manuals, local code, and site conditions before acting. Stop for electrical, gas, structural, drain, drowning, injury, emergency, or chemical-mixing risk.