diff --git a/CMakeLists.txt b/CMakeLists.txt
index 29ea741..04c0c84 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,6 +27,8 @@ add_executable(zavlaha
     src/screens/screen_set_time.c
     src/screens/screen_set_moisture_threshold.c
     src/screens/screen_moisture_calib.c
+    src/screens/screen_delka_zalivky.c
+    src/screens/screen_kompenzace_tlaku.c
     src/app_io.c
     src/app_config.c)
 
diff --git a/src/app_config.h b/src/app_config.h
index f0878ef..4e72695 100644
--- a/src/app_config.h
+++ b/src/app_config.h
@@ -20,7 +20,7 @@ struct  __attribute__((packed)) ScheduleTime {
 struct  __attribute__((packed)) AppConfig {
   uint8_t magic_version;
   uint16_t circuit_base_time_s;
-  uint8_t circuit_time_percent[CIRCUIT_COUNT]; // 0% can be used to disable a branch
+  uint16_t circuit_time_percent[CIRCUIT_COUNT]; // 0% can be used to disable a branch
   bool scheduler_enable;
   struct ScheduleTime schedules[SCHEDULE_COUNT];
   bool moisture_enable;
diff --git a/src/screens/app_gui.h b/src/screens/app_gui.h
index 58a019f..de9cabf 100644
--- a/src/screens/app_gui.h
+++ b/src/screens/app_gui.h
@@ -54,6 +54,8 @@ void screen_settings(GuiEvent event);
 void screen_set_time(GuiEvent event);
 void screen_set_moisture_threshold(GuiEvent event);
 void screen_moisture_calib(GuiEvent event);
+void screen_delka_zalivky(GuiEvent event);
+void screen_kompenzace_tlaku(GuiEvent event);
 // XXX other prototypes
 
 struct State {
diff --git a/src/screens/screen_delka_zalivky.c b/src/screens/screen_delka_zalivky.c
new file mode 100644
index 0000000..c47e6e0
--- /dev/null
+++ b/src/screens/screen_delka_zalivky.c
@@ -0,0 +1,66 @@
+#include <stdio.h>
+#include "app_gui.h"
+#include "gui_event.h"
+#include "ds_rtc.h"
+#include "app_io.h"
+#include "lcd.h"
+#include "app_config.h"
+
+static int value;
+static int cursor;
+
+void screen_delka_zalivky(GuiEvent event)
+{
+    char buf[100];
+
+    switch (event) {
+        case GUI_EVENT_SCREEN_INIT:
+            value = 0;
+            cursor = 0;
+            break;
+
+        case GUI_EVENT_PAINT:
+            LcdBuffer_Write(&lcd, 0, 0, "Zadej základní délku");
+            LcdBuffer_Write(&lcd, 1, 0, "zálivky (1 okruh)");
+
+            LcdBuffer_SetCursor(&lcd, 2, cursor, CURSOR_BOTH);
+
+            if (cursor > 0) {
+                snprintf(buf, 100, "%d s", value);
+                LcdBuffer_Write(&lcd, 2, 0, buf);
+            } else {
+                // show orig value
+                snprintf(buf, 100, "%d s", settings_scratch.circuit_base_time_s);
+                LcdBuffer_Write(&lcd, 2, 0, buf);
+            }
+
+            LcdBuffer_Write(&lcd, 3, 0, cursor == 0 ? "🅳Zrušit" : "🅳Zrušit 🅰Uložit");
+            break;
+
+        case GUI_EVENT_KEY_A: // Confirm
+            if (cursor > 0) {
+                settings_scratch.circuit_base_time_s = value;
+                switch_screen(screen_settings, false);
+            }
+            break;
+
+        case GUI_EVENT_KEY_D: // CANCEL
+            switch_screen(screen_settings, false);
+            break;
+
+        default:
+            if (event >= '0' && event <= '9') {
+                int digit = event - '0';
+                int th2 = value * 10 + digit;
+                if (th2 <= 10000) { // just some sensible big number that doesn't overflow the LCD row
+                    value = th2;
+                    if (cursor == 0) {
+                        // clear the line
+                        LcdBuffer_Write(&lcd, 2, 0, "                    ");
+                    }
+                    cursor++;
+                    request_paint();
+                }
+            }
+    }
+}
diff --git a/src/screens/screen_kompenzace_tlaku.c b/src/screens/screen_kompenzace_tlaku.c
new file mode 100644
index 0000000..fa2f5a4
--- /dev/null
+++ b/src/screens/screen_kompenzace_tlaku.c
@@ -0,0 +1,80 @@
+#include <stdio.h>
+#include <string.h>
+#include "app_gui.h"
+#include "gui_event.h"
+#include "ds_rtc.h"
+#include "app_io.h"
+#include "lcd.h"
+#include "app_config.h"
+
+static uint16_t ratios[CIRCUIT_COUNT];
+static int cursor;
+
+void screen_kompenzace_tlaku(GuiEvent event)
+{
+    char buf[100];
+
+    switch (event) {
+        case GUI_EVENT_SCREEN_INIT:
+            cursor = 0;
+            memcpy(ratios, settings_scratch.circuit_time_percent, sizeof(settings_scratch.circuit_time_percent));
+            break;
+
+        case GUI_EVENT_PAINT:
+            LcdBuffer_Write(&lcd, 0, 0, "Relativní čas okruhů");
+
+            snprintf(buf, 100, "1. %3d%%   3. %3d%%", ratios[0], ratios[2]);
+            LcdBuffer_Write(&lcd, 1, 0, buf);
+            snprintf(buf, 100, "2. %3d%%   4. %3d%%", ratios[1], ratios[3]);
+            LcdBuffer_Write(&lcd, 2, 0, buf);
+
+            switch (cursor) {
+                case 0:
+                    LcdBuffer_SetCursor(&lcd, 1, 0, CURSOR_BOTH);
+                    break;
+                case 1:
+                    LcdBuffer_SetCursor(&lcd, 2, 0, CURSOR_BOTH);
+                    break;
+                case 2:
+                    LcdBuffer_SetCursor(&lcd, 1, 10, CURSOR_BOTH);
+                    break;
+                case 3:
+                    LcdBuffer_SetCursor(&lcd, 2, 10, CURSOR_BOTH);
+                    break;
+            }
+
+            LcdBuffer_Write(&lcd, 3, 0, "⊛- ¤+ 🅳Zruš 🅰Ulož");
+            break;
+
+        case GUI_EVENT_KEY_A: // Confirm
+            memcpy(settings_scratch.circuit_time_percent, ratios, sizeof(settings_scratch.circuit_time_percent));
+            switch_screen(screen_settings, false);
+            break;
+
+        case GUI_EVENT_KEY_D: // CANCEL
+            switch_screen(screen_settings, false);
+            break;
+
+        case GUI_EVENT_KEY_1:
+        case GUI_EVENT_KEY_2:
+        case GUI_EVENT_KEY_3:
+        case GUI_EVENT_KEY_4:
+            cursor = event - '1';
+            request_paint();
+            break;
+
+        case GUI_EVENT_KEY_STAR:
+            if (ratios[cursor] >= 5) {
+                ratios[cursor] -= 5;
+                request_paint();
+            }
+            break;
+
+        case GUI_EVENT_KEY_HASH:
+            if (ratios[cursor] < 65535) {
+                ratios[cursor] += 5;
+                request_paint();
+            }
+            break;
+    }
+}
diff --git a/src/screens/screen_set_moisture_threshold.c b/src/screens/screen_set_moisture_threshold.c
index 1bad130..0cc2165 100644
--- a/src/screens/screen_set_moisture_threshold.c
+++ b/src/screens/screen_set_moisture_threshold.c
@@ -23,13 +23,14 @@ void screen_set_moisture_threshold(GuiEvent event)
             LcdBuffer_Write(&lcd, 0, 0, "Blokuj zálivku pokud");
             LcdBuffer_Write(&lcd, 1, 0, "je vlhkost vyšší než");
 
-            LcdBuffer_SetCursor(&lcd, 2, cursor, (cursor < 3) ? CURSOR_BOTH : CURSOR_NONE);
+            LcdBuffer_SetCursor(&lcd, 2, cursor, (cursor < 3) ? CURSOR_BLINK : CURSOR_NONE);
 
             if (cursor > 0) {
                 snprintf(buf, 100, "%d %%", threshold);
                 LcdBuffer_Write(&lcd, 2, 0, buf);
             } else {
-                LcdBuffer_Write(&lcd, 2, 0, "  %");
+                snprintf(buf, 100, "%d %%", settings_scratch.moisture_threshold_percent);
+                LcdBuffer_Write(&lcd, 2, 0, buf);
             }
 
             LcdBuffer_Write(&lcd, 3, 0, cursor == 0 ? "🅳Zrušit" : "🅳Zrušit 🅰Uložit");
@@ -51,6 +52,10 @@ void screen_set_moisture_threshold(GuiEvent event)
                 int digit = event - '0';
                 int th2 = threshold * 10 + digit;
                 if (th2 <= 100) {
+                    if (cursor == 0) {
+                        // clear the line
+                        LcdBuffer_Write(&lcd, 2, 0, "                    ");
+                    }
                     threshold = th2;
                     cursor++;
                     request_paint();
diff --git a/src/screens/screen_settings.c b/src/screens/screen_settings.c
index 0532bd7..8ba2f3d 100644
--- a/src/screens/screen_settings.c
+++ b/src/screens/screen_settings.c
@@ -109,10 +109,11 @@ void screen_settings(GuiEvent event)
                 case 2:
                     switch (event) {
                         case GUI_EVENT_KEY_1: // Délka zálivky
+                            switch_screen(screen_delka_zalivky, true);
                             break;
 
                         case GUI_EVENT_KEY_2: // Kompenzace tlaku
-                            // TODO
+                            switch_screen(screen_kompenzace_tlaku, true);
                             break;
                     }
                     break;